diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 1668e23bde..f4a463310e 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -229,7 +229,7 @@ typedef struct PPS{
     int transform_8x8_mode;     ///< transform_8x8_mode_flag
     uint8_t scaling_matrix4[6][16];
     uint8_t scaling_matrix8[6][64];
-    uint8_t chroma_qp_table[2][64];  ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
+    uint8_t chroma_qp_table[2][QP_MAX_NUM+1];  ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
     int chroma_qp_diff;
 }PPS;