diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5ca7729..aa7d4ef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -612,8 +612,6 @@ endif()
 
 # Include compatibility layer
 if(MZ_COMPAT)
-    set(SOVERSION "1")
-
     set(FILE_H "zip.h")
     set(MZ_COMPAT_FILE "MZ_COMPAT_ZIP")
     configure_file(mz_compat_shim.h.in zip.h)