diff --git a/contrib/diff/man/diff3.1 b/contrib/diff/man/diff3.1
index f7daee23a63..41d855ec621 100644
--- a/contrib/diff/man/diff3.1
+++ b/contrib/diff/man/diff3.1
@@ -73,6 +73,6 @@ and
 .B diff3
 programs are properly installed at your site, the command
 .IP
-.B info diff
+.B info diff3
 .PP
 should give you access to the complete manual.