diff --git a/slpkg/main.py b/slpkg/main.py
index 40812866..4ff33451 100644
--- a/slpkg/main.py
+++ b/slpkg/main.py
@@ -87,7 +87,7 @@ class Argparse:
             raise SystemExit("\nError: You should enable the dialog "
                              "in the '/etc/slpkg/' folder.\n")
 
-    def check_for_flags(self, command):
+    def check_for_flags(self, command: str):
         """ Check for correct flags. """
 
         commands = {
@@ -164,7 +164,7 @@ class Argparse:
             if opt not in flags and opt not in ['--help', '--version']:
                 self.usage.error_for_options(flags)
 
-    def choose_packages(self, packages, method):
+    def choose_packages(self, packages: list, method: str):
         """ Choose packages with dialog utility and --search flag. """
         height = 10
         width = 70