diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index f5813b7bf9..649f15de67 100644
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -484,6 +484,7 @@ int main(int argc, char **argv)
             dct_error("IJG-AAN-INT", 0, fdct_ifast, fdct, test);
             dct_error("IJG-LLM-INT", 0, ff_jpeg_fdct_islow, fdct, test);
             dct_error("MMX", 0, ff_fdct_mmx, fdct, test);
+            dct_error("MMX2", 0, ff_fdct_mmx2, fdct, test);
             dct_error("FAAN", 0, ff_faandct, fdct, test);
         } else {
             dct_error("REF-DBL", 1, idct, idct, test);
diff --git a/libavcodec/i386/fdct_mmx.c b/libavcodec/i386/fdct_mmx.c
index 9ef269d50f..2f9a5aef96 100644
--- a/libavcodec/i386/fdct_mmx.c
+++ b/libavcodec/i386/fdct_mmx.c
@@ -233,6 +233,8 @@ static always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const i
     pmaddwd_m2r(*(table + 12), mm1);
     pmaddwd_m2r(*(table + 24), mm5);
     pmaddwd_m2r(*(table + 28), mm6);
+    paddd_r2r(mm4, mm3);
+    paddd_r2r(mm7, mm2);
     paddd_r2r(mm1, mm0);
     paddd_r2r(mm6, mm5);
     movq_m2r(*fdct_r_row, mm7);