diff --git a/libavfilter/tinterlace.h b/libavfilter/tinterlace.h
index fa0a83ae0c..d80a6e2179 100644
--- a/libavfilter/tinterlace.h
+++ b/libavfilter/tinterlace.h
@@ -43,7 +43,7 @@ enum TInterlaceMode {
 
 typedef struct {
     const AVClass *class;
-    enum TInterlaceMode mode;   ///< interlace mode selected
+    int mode;                   ///< TInterlaceMode, interlace mode selected
     AVRational preout_time_base;
     int flags;                  ///< flags affecting interlacing algorithm
     int frame;                  ///< number of the output frame