diff --git a/modoboa_installer/scripts/base.py b/modoboa_installer/scripts/base.py
index 43788e04..a9a82906 100644
--- a/modoboa_installer/scripts/base.py
+++ b/modoboa_installer/scripts/base.py
@@ -52,8 +52,8 @@ def modoboa_2_2_or_greater(self):
             sudo_user=self.config.get("modoboa", "user")
             )
         condition = (
-            (modoboa_version[0] == 2 and modoboa_version[1] >= 2) or
-            modoboa_version[0] > 2
+            (int(modoboa_version[0]) == 2 and int(modoboa_version[1]) >= 2) or
+            int(modoboa_version[0]) > 2
             )
         return condition