diff --git a/extensions/sdktools/hooks.cpp b/extensions/sdktools/hooks.cpp
index 83588c99fa..c758575314 100644
--- a/extensions/sdktools/hooks.cpp
+++ b/extensions/sdktools/hooks.cpp
@@ -584,7 +584,7 @@ bool CHookManager::SendFile(const char *filename, unsigned int transferID)
 #if !defined CLIENTVOICE_HOOK_SUPPORT
 bool CHookManager::ProcessVoiceData(CLC_VoiceData *msg)
 {
-	IClient *pClient = (IClient *)((intptr_t)(META_IFACEPTR(IClient)) - 4);
+	IClient *pClient = (IClient *)((intptr_t)(META_IFACEPTR(IClient)) - sizeof(intptr_t));
 	if (pClient == NULL)
 	{
 		return true;
diff --git a/extensions/sdktools/vhelpers.cpp b/extensions/sdktools/vhelpers.cpp
index 7d5c5545d0..ceeaa76ae5 100644
--- a/extensions/sdktools/vhelpers.cpp
+++ b/extensions/sdktools/vhelpers.cpp
@@ -754,7 +754,7 @@ CEntityFactoryDictionary *GetEntityFactoryDictionary()
 
 			// Get real address of function
 			// Address of signature + offset of relative offset + sizeof(int32_t) offset + relative offset
-			addr = (void *)((intptr_t)addr + offset + 4 + funcOffset);
+			addr = (void *)((intptr_t)addr + offset + sizeof(intptr_t) + funcOffset);
 		}
 
 		pWrapper = g_pBinTools->CreateCall(addr, CallConv_Cdecl, &retData, NULL, 0);