diff --git a/ThProg/Makefile b/ThProg/Makefile
index f366443..5156e5b 100644
--- a/ThProg/Makefile
+++ b/ThProg/Makefile
@@ -7,7 +7,7 @@ single: Konfluenz.pdf Koinduktion_reduktion.pdf Strukturelle_Induktion.pdf Polyn
 
 continuous: $(PDF).continuous
 
-clean: cleanup rmpdf all
+clean: cleanup rmpdf
 
 rmpdf:
 	@-rm -f *.pdf