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-rw-r--r--Alc/alcReverb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Alc/alcReverb.c b/Alc/alcReverb.c
index 49bb26ce..80439669 100644
--- a/Alc/alcReverb.c
+++ b/Alc/alcReverb.c
@@ -794,7 +794,7 @@ static __inline ALvoid CalcMatrixCoeffs(ALfloat diffusion, ALfloat *x, ALfloat *
// The matrix is of order 4, so n is sqrt (4 - 1).
n = aluSqrt(3.0f);
- t = diffusion * atan(n);
+ t = diffusion * aluAtan(n);
// Calculate the first mixing matrix coefficient.
*x = aluCos(t);