diff --git a/Makefile b/Makefile
index df3682f28a..9ac540df55 100644
--- a/Makefile
+++ b/Makefile
@@ -564,7 +564,7 @@ SPATCH = spatch
 export TCL_PATH TCLTK_PATH
 
 SPARSE_FLAGS =
-SPATCH_FLAGS = --all-includes
+SPATCH_FLAGS = --all-includes --patch .