diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index e6a33fb925..858f3b4d6d 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -932,7 +932,7 @@ void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
     offset = *synth_buf_offset;
     synth_buf = synth_buf_ptr + offset;
 
-#if FRAC_BITS <= 15 && !CONFIG_FLOAT
+#if FRAC_BITS <= 15
     dct32(tmp, sb_samples);
     for(j=0;j<32;j++) {
         /* NOTE: can cause a loss in precision if very high amplitude