diff --git a/numpy/lib/type_check.py b/numpy/lib/type_check.py
index 07f4463c5a4c..1658f160ceef 100644
--- a/numpy/lib/type_check.py
+++ b/numpy/lib/type_check.py
@@ -342,7 +342,7 @@ def nan_to_num(x):
 
     See Also
     --------
-    isinf : Shows which elements are negative or negative infinity.
+    isinf : Shows which elements are positive or negative infinity.
     isneginf : Shows which elements are negative infinity.
     isposinf : Shows which elements are positive infinity.
     isnan : Shows which elements are Not a Number (NaN).