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-rw-r--r--math/k_casinh_template.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/math/k_casinh_template.c b/math/k_casinh_template.c
index f7b679e55f..451f05c279 100644
--- a/math/k_casinh_template.c
+++ b/math/k_casinh_template.c
@@ -21,6 +21,7 @@
 #include <complex.h>
 #include <math.h>
 #include <math_private.h>
+#include <math-underflow.h>
 #include <float.h>
 
 /* Return the complex inverse hyperbolic sine of finite nonzero Z,