diff --git a/prism/Makefile b/prism/Makefile
index f7236446..d00485fa 100644
--- a/prism/Makefile
+++ b/prism/Makefile
@@ -370,7 +370,8 @@ dist_tidy:
 	@find . \( -type d -o -type s \) -exec chmod 755 {} \;
 	@find . -type f  \( -name '*.sh' -o -name '*.so' -o -name '*.dll' \) -exec chmod 755 {} \;
 	@find examples -type f -name 'auto' -exec chmod 755 {} \;
-	@chmod 755 bin/* src/bin/*
+	@find bin -type f -exec chmod 755 {} \;
+	@find src/bin -type f -exec chmod 755 {} \;
 
 binary:
 	@echo Generating jar file...