diff --git a/libswscale/Makefile b/libswscale/Makefile
index 38a33e20a6..a28c67c8dc 100644
--- a/libswscale/Makefile
+++ b/libswscale/Makefile
@@ -9,7 +9,7 @@ EXTRALIBS := -L../libavutil -lavutil$(BUILDSUF) $(EXTRALIBS)
 endif
 
 # NOTE: -I.. is needed to include config.h
-CFLAGS=$(OPTFLAGS) -I.. -I$(SRC_PATH) -I$(SRC_PATH)/libavutil \
+CFLAGS=-I.. -I$(SRC_PATH) -I$(SRC_PATH)/libavutil $(OPTFLAGS) \
        -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE \
        -D_GNU_SOURCE