diff --git a/src/add-ons/media/plugins/avcodec/libavcodec/x86/h264dsp_mmx.c b/src/add-ons/media/plugins/avcodec/libavcodec/x86/h264dsp_mmx.c
index bf96613c33..f1a6bd2d7f 100644
--- a/src/add-ons/media/plugins/avcodec/libavcodec/x86/h264dsp_mmx.c
+++ b/src/add-ons/media/plugins/avcodec/libavcodec/x86/h264dsp_mmx.c
@@ -792,6 +792,8 @@ static void h264_h_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int a
     transpose4x4(pix-2+4*stride, trans+4, stride, 8);
 }
 
+#ifndef __HAIKU__
+
 static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
                                             int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field ) {
     int dir;
@@ -895,6 +897,12 @@ static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40]
     );
 }
 
+#else
+static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
+                                            int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field ) {
+}
+#endif
+
 /***********************************/
 /* motion compensation */