diff --git a/libavcodec/mips/iirfilter_mips.c b/libavcodec/mips/iirfilter_mips.c
index 74f036fde6..3a1352a7e4 100644
--- a/libavcodec/mips/iirfilter_mips.c
+++ b/libavcodec/mips/iirfilter_mips.c
@@ -52,6 +52,7 @@
  * Reference: libavcodec/iirfilter.c
  */
 
+#include "config.h"
 #include "libavcodec/iirfilter.h"
 
 #if HAVE_INLINE_ASM