diff --git a/cmake-proxies/cmake-modules/AudacityFunctions.cmake b/cmake-proxies/cmake-modules/AudacityFunctions.cmake
index 4a14db612..165101289 100644
--- a/cmake-proxies/cmake-modules/AudacityFunctions.cmake
+++ b/cmake-proxies/cmake-modules/AudacityFunctions.cmake
@@ -359,6 +359,15 @@ function( audacity_module_fn NAME SOURCES IMPORT_TARGETS
             PREFIX ""
             FOLDER "modules" # for IDE organization
       )
+      if( CMAKE_HOST_SYSTEM_NAME MATCHES "Darwin" )
+         add_custom_command(
+	    TARGET ${TARGET}
+            COMMAND ${CMAKE_COMMAND}
+	       -D SRC="${_MODDIR}/${TARGET}.so"
+               -D WXWIN="${_SHARED_PROXY_BASE_PATH}/$<CONFIG>"
+               -P ${AUDACITY_MODULE_PATH}/CopyLibs.cmake
+            POST_BUILD )
+      endif()
    else()
       set( ATTRIBUTES "shape=octagon" )
       set_target_property_all( ${TARGET} ${DIRECTORY_PROPERTY} "${_SHARED_PROXY_PATH}" )
diff --git a/cmake-proxies/cmake-modules/CopyLibs.cmake b/cmake-proxies/cmake-modules/CopyLibs.cmake
index a79811e44..9050acc1c 100644
--- a/cmake-proxies/cmake-modules/CopyLibs.cmake
+++ b/cmake-proxies/cmake-modules/CopyLibs.cmake
@@ -84,7 +84,13 @@ function( gather_libs src )
 
                list( APPEND words "-change ${line} @executable_path/../Frameworks/${refname}" )
 
-               if( NOT "${lib}" IN_LIST VISITED )
+               if(
+	          # Don't do depth first search from modules: assume the fixup
+		  # of .dylib libraries was already done when this function
+		  # was visited for the executable
+	          NOT src MATCHES "\\.so$"
+	          AND NOT "${lib}" IN_LIST VISITED
+	        )
                   gather_libs( ${lib} )
 	       endif()
             endif()
@@ -141,5 +147,9 @@ foreach( cmd ${postcmds} )
    )
 endforeach()
 
-list( REMOVE_DUPLICATES libs )
-file( INSTALL ${libs} DESTINATION ${DST} FOLLOW_SYMLINK_CHAIN )
+# This .cmake file is invoked on Darwin for modules too.
+# Do the INSTALL only for the executable.
+if( NOT SRC MATCHES "\\.so$" )
+   list( REMOVE_DUPLICATES libs )
+   file( INSTALL ${libs} DESTINATION ${DST} FOLLOW_SYMLINK_CHAIN )
+endif()