diff --git a/slpkg/utilities.py b/slpkg/utilities.py
index 793a6a7d..fc63a596 100644
--- a/slpkg/utilities.py
+++ b/slpkg/utilities.py
@@ -192,8 +192,9 @@ class Utilities:
     def apply_package_pattern(data: dict, packages: list) -> list:
         """ Apply the pattern. """
         for pkg in packages:
+
             if pkg == '*':
                 packages.remove(pkg)
-                packages += data.keys()
+                packages += list(data.keys())
 
         return packages