diff --git a/shellcheck.1.md b/shellcheck.1.md
index 3e026cb..36c341a 100644
--- a/shellcheck.1.md
+++ b/shellcheck.1.md
@@ -36,7 +36,7 @@ not warn at all, as `ksh` supports decimals in arithmetic contexts.
 
 :   Emit warnings in sourced files. Normally, `shellcheck` will only warn
     about issues in the specified files. With this option, any issues in
-    sourced files files will also be reported.
+    sourced files will also be reported.
 
 **-C**[*WHEN*],\ **--color**[=*WHEN*]