1 files changed, 1 insertions, 1 deletions
diff --git a/celt/vq.c b/celt/vq.c
index 8d49d804..5a4a8afd 100644
--- a/celt/vq.c
+++ b/celt/vq.c
@@ -426,7 +426,7 @@ int stereo_itheta(const celt_norm *X, const celt_norm *Y, int stereo, int N, int
    /* 0.63662 = 2/pi */
    itheta = MULT16_16_Q15(QCONST16(0.63662f,15),celt_atan2p(side, mid));
 #else
-   itheta = (int)floor(.5f+16384*0.63662f*atan2(side,mid));
+   itheta = (int)floor(.5f+16384*0.63662f*fast_atan2f(side,mid));
 #endif
 
    return itheta;