diff --git a/completions/cppcheck b/completions/cppcheck
index 2ee5359b..ed9da3e3 100644
--- a/completions/cppcheck
+++ b/completions/cppcheck
@@ -39,6 +39,10 @@ _cppcheck()
             COMPREPLY=( $( compgen -W "{2..$(_ncpus)}" -- "$cur" ) )
             return
             ;;
+        --language|-x)
+            COMPREPLY=( $( compgen -W 'c c++' -- "$cur" ) )
+            return
+            ;;
         --std)
             COMPREPLY=( $( compgen -W 'c89 c99 c11 c++03 c++11 posix' \
                 -- "$cur" ) )