diff --git a/funcs/Makefile b/funcs/Makefile
index 60ef951519..63d36bfe9b 100644
--- a/funcs/Makefile
+++ b/funcs/Makefile
@@ -24,7 +24,7 @@ BUILTINS=func_md5.o \
          func_timeout.o \
          func_language.o \
          func_moh.o \
-	 func_base64.o
+         func_base64.o
 
 AVAILABLE_FUNCS=$(filter-out $(BUILTINS),$(patsubst %.c,%.o,$(wildcard func*.c)))