diff --git a/doc_src/cmds/string-pad.rst b/doc_src/cmds/string-pad.rst
index 721e78b49..aacd26df2 100644
--- a/doc_src/cmds/string-pad.rst
+++ b/doc_src/cmds/string-pad.rst
@@ -1,5 +1,5 @@
 string-pad - pad characters before and after string
-========================================
+===================================================
 
 Synopsis
 --------