diff --git a/source/blender/python/api2_2x/Makefile b/source/blender/python/api2_2x/Makefile
index f49d7c3320e..159b535d678 100644
--- a/source/blender/python/api2_2x/Makefile
+++ b/source/blender/python/api2_2x/Makefile
@@ -45,6 +45,9 @@ endif
 
 CFLAGS += $(LEVEL_1_C_WARNINGS)
 
+ifeq ($(WITH_FFMPEG), true)
+   CPPFLAGS += -DWITH_FFMPEG
+endif
 
 CPPFLAGS += -I$(OPENGL_HEADERS)
 CPPFLAGS += -I$(NAN_GUARDEDALLOC)/include