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-rw-r--r--src/math/log1pl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/math/log1pl.c b/src/math/log1pl.c
index edb48df1..37da46d2 100644
--- a/src/math/log1pl.c
+++ b/src/math/log1pl.c
@@ -118,7 +118,7 @@ long double log1pl(long double xm1)
 	/* Test for domain errors.  */
 	if (x <= 0.0) {
 		if (x == 0.0)
-			return -1/x; /* -inf with divbyzero */
+			return -1/(x*x); /* -inf with divbyzero */
 		return 0/0.0f; /* nan with invalid */
 	}