diff --git a/libsrc/geos-common/graph/Makefile b/libsrc/geos-common/graph/Makefile
index 2c0a6e2bb..fea69823a 100644
--- a/libsrc/geos-common/graph/Makefile
+++ b/libsrc/geos-common/graph/Makefile
@@ -32,4 +32,4 @@ S_OBJS +=	bitmapclip.o		\
 		setpattern.o		\
 		testpoint.o		\
 		usesystemfont.o		\
-		verticalline.o		\
+		verticalline.o