diff --git a/Makefile b/Makefile
index 5748613..0296066 100644
--- a/Makefile
+++ b/Makefile
@@ -25,5 +25,5 @@ clean_inform:
 
 
 clean:
-	$(foreach TARGET_NAME, $(TARGETS), - rm -rf $(SRCDIR)/$(TARGET_NAME).inform/Build $(SRCDIR)/$(TARGET_NAME).inform/Index $(SRCDIR)/$(TARGET_NAME).inform/*.plist $(SRCDIR)/$(TARGET_NAME).inform/*.iFiction $(SRCDIR)/$(TARGET_NAME).inform/*.blurb )
+	$(foreach TARGET_NAME, $(TARGETS), - rm -rf $(SRCDIR)/$(TARGET_NAME).inform/Build - rm -rf $(SRCDIR)/$(TARGET_NAME).materials/Release $(SRCDIR)/$(TARGET_NAME).inform/Index $(SRCDIR)/$(TARGET_NAME).inform/*.plist $(SRCDIR)/$(TARGET_NAME).inform/*.iFiction $(SRCDIR)/$(TARGET_NAME).inform/*.blurb )
 	- rm *.gblorb