diff --git a/libavutil/common.h b/libavutil/common.h
index ca6147a802..4ca5353f5f 100644
--- a/libavutil/common.h
+++ b/libavutil/common.h
@@ -120,7 +120,7 @@ static inline int av_log2_16bit(unsigned int v)
 /* median of 3 */
 static inline int mid_pred(int a, int b, int c)
 {
-#if HAVE_CMOV
+#ifdef HAVE_CMOV
     int i=b;
     asm volatile(
         "cmp    %2, %1 \n\t"