diff --git a/Makefile b/Makefile
index 3e0b356..d65dfa5 100644
--- a/Makefile
+++ b/Makefile
@@ -2,10 +2,10 @@ PHONY : clean doc all
 all : prog
 	
 prog : 
-	Make -C src all
+	make -C src all
 
 doc :
-	Make -C src doc
+	make -C src doc
 
 clean :
-	Make -C src clean
+	make -C src clean