diff --git a/Sources/MockoloFramework/Models/ParamModel.swift b/Sources/MockoloFramework/Models/ParamModel.swift
index a1ca813d..c4ba047d 100644
--- a/Sources/MockoloFramework/Models/ParamModel.swift
+++ b/Sources/MockoloFramework/Models/ParamModel.swift
@@ -79,7 +79,7 @@ final class ParamModel: Model {
         if self.inInit, self.needVarDecl {
             let type: `Type`
             if eraseType {
-                type = Type(.any)
+                type = Type(.anyType)
             } else {
                 type = self.type
             }
diff --git a/Sources/MockoloFramework/Models/TypeAliasModel.swift b/Sources/MockoloFramework/Models/TypeAliasModel.swift
index 30711f0e..013d7cea 100644
--- a/Sources/MockoloFramework/Models/TypeAliasModel.swift
+++ b/Sources/MockoloFramework/Models/TypeAliasModel.swift
@@ -49,7 +49,7 @@ final class TypeAliasModel: Model {
         if let val = overrideTypes?[self.name] {
             self.type  = Type(val)
         } else {
-            self.type = typeName.isEmpty ? Type(String.any) : Type(typeName)
+            self.type = typeName.isEmpty ? Type(String.anyType) : Type(typeName)
         }
     }
 
diff --git a/Sources/MockoloFramework/Utils/InheritanceResolver.swift b/Sources/MockoloFramework/Utils/InheritanceResolver.swift
index 48461c8e..128f2531 100644
--- a/Sources/MockoloFramework/Utils/InheritanceResolver.swift
+++ b/Sources/MockoloFramework/Utils/InheritanceResolver.swift
@@ -56,7 +56,7 @@ func lookupEntities(key: String,
         if declType == .protocolType { // TODO: remove this once parent protocol (current decl = classtype) handling is resolved.
             // If the protocol inherits other protocols, look up their entities as well.
             for parent in current.entityNode.inheritedTypes {
-                if parent != .class, parent != .any, parent != .anyObject {
+                if parent != .class, parent != .anyType, parent != .anyObject {
                     let (parentModels, parentProcessedModels, parentAttributes, parentPaths, parentPathToContents) = lookupEntities(key: parent, declType: declType, protocolMap: protocolMap, inheritanceMap: inheritanceMap)
                     models.append(contentsOf: parentModels)
                     processedModels.append(contentsOf: parentProcessedModels)
diff --git a/Sources/MockoloFramework/Utils/StringExtensions.swift b/Sources/MockoloFramework/Utils/StringExtensions.swift
index e0f0a890..fb6ffafb 100644
--- a/Sources/MockoloFramework/Utils/StringExtensions.swift
+++ b/Sources/MockoloFramework/Utils/StringExtensions.swift
@@ -44,7 +44,8 @@ extension String {
     static let mockType = "protocol"
     static let unknownVal = "Unknown"
     static let prefix = "prefix"
-    static let any = "Any"
+    static let anyType = "Any"
+    static let any = "any"
     static let some = "some"
     static let anyObject = "AnyObject"
     static let fatalError = "fatalError"
diff --git a/Sources/MockoloFramework/Utils/TypeParser.swift b/Sources/MockoloFramework/Utils/TypeParser.swift
index 7de83537..83b893a1 100644
--- a/Sources/MockoloFramework/Utils/TypeParser.swift
+++ b/Sources/MockoloFramework/Utils/TypeParser.swift
@@ -89,7 +89,7 @@ public final class `Type` {
         }
 
         // Use force unwrapped for the underlying type so it doesn't always have to be set in the init (need to allow blank init).
-        if hasClosure {
+        if hasClosure || hasExistentialAny {
             ret = "(\(ret))!"
         } else {
             if isOptional {
@@ -129,6 +129,10 @@ public final class `Type` {
         return typeName.range(of: String.closureArrow) != nil
     }
 
+    var hasExistentialAny: Bool {
+        return typeName.hasPrefix(.any)
+    }
+
     var isEscaping: Bool {
         return typeName.hasPrefix(String.escaping)
     }
@@ -525,16 +529,16 @@ public final class `Type` {
         if !typeParams.filter({ returnComps.contains($0)}).isEmpty {
             returnAsStr = returnType.typeName
             if returnType.isOptional {
-                displayableReturnType = .any + "?"
+                displayableReturnType = .anyType + "?"
                 returnAsStr.removeLast()
                 asSuffix = "?"
             } else if returnType.isIUO {
-                displayableReturnType = .any + "!"
+                displayableReturnType = .anyType + "!"
                 returnAsStr.removeLast()
             } else if returnType.isSelf {
                 returnAsStr = String.`Self`
             } else {
-                displayableReturnType = .any
+                displayableReturnType = .anyType
             }
 
             if !returnAsStr.isEmpty {
@@ -598,7 +602,7 @@ public final class `Type` {
             let left = ret[ret.startIndex..<closureRng.lowerBound]
             for item in typeParamList {
                 if isEscaping, left.literalComponents.contains(item) {
-                    ret = String.any
+                    ret = String.anyType
                     if isTypeOptional {
                         ret += "?"
                     }
@@ -608,7 +612,7 @@ public final class `Type` {
 
             for item in typeParamList {
                 if ret.literalComponents.contains(item) {
-                    ret = ret.replacingOccurrences(of: item, with: String.any)
+                    ret = ret.replacingOccurrences(of: item, with: String.anyType)
                 }
             }
             return ret
@@ -618,7 +622,7 @@ public final class `Type` {
             }.isEmpty == false
 
             if hasGenericType || isOpaqueType {
-                ret = .any
+                ret = .anyType
                 if isTypeOptional {
                     ret += "?"
                 }
diff --git a/Tests/TestExistentialAny/ExistentialAnyTests.swift b/Tests/TestExistentialAny/ExistentialAnyTests.swift
new file mode 100644
index 00000000..f0f5bf7e
--- /dev/null
+++ b/Tests/TestExistentialAny/ExistentialAnyTests.swift
@@ -0,0 +1,8 @@
+import Foundation
+
+class ExistentialAnyTests: MockoloTestCase {
+    func testForArgFuncs() {
+        verify(srcContent: existentialAny,
+               dstContent: existentialAnyMock)
+    }
+}
diff --git a/Tests/TestExistentialAny/FixtureExistentialAny.swift b/Tests/TestExistentialAny/FixtureExistentialAny.swift
new file mode 100644
index 00000000..321c6d5e
--- /dev/null
+++ b/Tests/TestExistentialAny/FixtureExistentialAny.swift
@@ -0,0 +1,51 @@
+let existentialAny = """
+/// \(String.mockAnnotation)
+protocol ExistentialAny {
+    var foo: P { get }
+    var bar: any R<Int> { get }
+    var baz: any P & Q { get }
+    var qux: (any P) -> any P { get }
+}
+"""
+
+let existentialAnyMock =
+"""
+class ExistentialAnyMock: ExistentialAny {
+    init() { }
+    init(foo: P, bar: any R<Int>, baz: any P & Q, qux: @escaping (any P) -> any P) {
+        self._foo = foo
+        self._bar = bar
+        self._baz = baz
+        self._qux = qux
+    }
+
+
+    private(set) var fooSetCallCount = 0
+    private var _foo: P!  { didSet { fooSetCallCount += 1 } }
+    var foo: P {
+        get { return _foo }
+        set { _foo = newValue }
+    }
+
+    private(set) var barSetCallCount = 0
+    private var _bar: (any R<Int>)!  { didSet { barSetCallCount += 1 } }
+    var bar: any R<Int> {
+        get { return _bar }
+        set { _bar = newValue }
+    }
+
+    private(set) var bazSetCallCount = 0
+    private var _baz: (any P & Q)!  { didSet { bazSetCallCount += 1 } }
+    var baz: any P & Q {
+        get { return _baz }
+        set { _baz = newValue }
+    }
+
+    private(set) var quxSetCallCount = 0
+    private var _qux: ((any P) -> any P)!  { didSet { quxSetCallCount += 1 } }
+    var qux: (any P) -> any P {
+        get { return _qux }
+        set { _qux = newValue }
+    }
+}
+"""