diff --git a/test/lib/completions/perl.exp b/test/lib/completions/perl.exp
index 8be41621..906433d1 100644
--- a/test/lib/completions/perl.exp
+++ b/test/lib/completions/perl.exp
@@ -91,5 +91,15 @@ assert_complete $options "perl -"
 
 sync_after_int
 
+# Assuming that File::Spec and friends are always installed...
+
+assert_complete_any "perl -MFile"
+sync_after_int
+
+assert_complete_any "perl -MFile::Sp"
+sync_after_int
+
+assert_complete_any "perl -MFile::Spec::Func"
+sync_after_int
 
 teardown