diff --git a/man3/assert_perror.3 b/man3/assert_perror.3
index 3fee3202b..dd08575f4 100644
--- a/man3/assert_perror.3
+++ b/man3/assert_perror.3
@@ -43,7 +43,7 @@ was last included, the macro
 generates no code, and hence does nothing at all.
 Otherwise, the macro
 .BR assert_perror ()
-prints an error message to standard output and terminates the program
+prints an error message to standard error and terminates the program
 by calling
 .BR abort ()
 if