diff --git a/libavcodec/x86/fft_sse.c b/libavcodec/x86/fft_sse.c
index 0908671537..9f02816def 100644
--- a/libavcodec/x86/fft_sse.c
+++ b/libavcodec/x86/fft_sse.c
@@ -97,6 +97,7 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
         :"+r"(j), "+r"(k)
         :"r"(output+n4), "r"(output+n4*3),
          "m"(*m1m1m1m1)
+        XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm7")
     );
 }