diff --git a/scripting/python_scripting.cpp b/scripting/python_scripting.cpp
index e292887ff0..9b74709fc6 100644
--- a/scripting/python_scripting.cpp
+++ b/scripting/python_scripting.cpp
@@ -156,6 +156,10 @@ bool SCRIPTING::scriptingSetup()
   #endif
 #elif defined( __WXMAC__ )
 
+    // Prevent Mac builds from generating JIT versions as this will break
+    // the package signing
+    wxSetEnv( "PYTHONDONTWRITEBYTECODE", "1" );
+
     // Add default paths to PYTHONPATH
     wxString pypath;