diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 84a7943..6c09e85 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -286,7 +286,7 @@
       warning is triggered repeatedly for the same source line, such as inside a
       loop).
    ``module``
-      Print each warning only only the first time it occurs in each module.
+      Print each warning only the first time it occurs in each module.
    ``once``
       Print each warning only the first time it occurs in the program.
    ``error``