diff --git a/build/build.xml b/build/build.xml
index e78441953..22df7733f 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -553,12 +553,18 @@
            causes appbundler to remove the extension handling,
            so double-clicking files no longer works. -->
 
-      <bundledocument extensions="pde,pyde"
+      <bundledocument extensions="pde"
                       icon="macos/pde.icns"
                       name="Processing Source Code"
                       role="Editor">
       </bundledocument>
 
+      <bundledocument extensions="pyde"
+                      icon="macos/pde.icns"
+                      name="Processing Python Source Code"
+                      role="Editor">
+      </bundledocument>
+
       <bundledocument extensions="pdez"
                       icon="macos/pdez.icns"
                       name="Processing Sketch Bundle"