diff --git a/src/test/java/net/e175/klaus/zip/ZipPrefixerTest.java b/src/test/java/net/e175/klaus/zip/ZipPrefixerTest.java
index 53b0bb5..770ca73 100644
--- a/src/test/java/net/e175/klaus/zip/ZipPrefixerTest.java
+++ b/src/test/java/net/e175/klaus/zip/ZipPrefixerTest.java
@@ -71,7 +71,7 @@ void detectsBadOffsets() throws IOException {
     @ParameterizedTest
     @ValueSource(strings = {"simplest.jar", "simplest-zip64.jar", "single-1g-file.zip", "single-10g-file.zip",
             "2k-tiny-files.zip", "20k-tiny-files.zip", "small-forced-zip64.zip", "small-forced-zip64-python.zip",
-            "zip64-golang.zip"})
+            "zip64-golang.zip", "winzip-normal.zip", "winzip-zipx.zip"})
     void adjustsZipOffsets(String filename) throws IOException {
         Path f = prepareTestFile(filename);
 
diff --git a/src/test/resources/winzip-aes-encrypted.zip.gz b/src/test/resources/winzip-aes-encrypted.zip.gz
new file mode 100644
index 0000000..4caa73c
Binary files /dev/null and b/src/test/resources/winzip-aes-encrypted.zip.gz differ
diff --git a/src/test/resources/winzip-normal.zip.gz b/src/test/resources/winzip-normal.zip.gz
new file mode 100644
index 0000000..6a4004b
Binary files /dev/null and b/src/test/resources/winzip-normal.zip.gz differ
diff --git a/src/test/resources/winzip-zipx.zip.gz b/src/test/resources/winzip-zipx.zip.gz
new file mode 100644
index 0000000..155d1ce
Binary files /dev/null and b/src/test/resources/winzip-zipx.zip.gz differ