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-rw-r--r--math/k_casinh.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/math/k_casinh.c b/math/k_casinh.c
index de04e84004..cd089ab8f2 100644
--- a/math/k_casinh.c
+++ b/math/k_casinh.c
@@ -199,7 +199,7 @@ __kernel_casinh (__complex__ double x, int adj)
if (adj)
{
double t = __real__ y;
- __real__ y = copysign (__imag__ y, __imag__ x);
+ __real__ y = __copysign (__imag__ y, __imag__ x);
__imag__ y = t;
}