diff --git a/loaih/__init__.py b/loaih/__init__.py
index d682d94..ecd087c 100644
--- a/loaih/__init__.py
+++ b/loaih/__init__.py
@@ -47,6 +47,11 @@ class Build(object):
     def check(self, storage_path):
         """Checking if the requested AppImage has been already built."""
         self.storage_path = storage_path + ('/portable' if self.portable else '')
+        # Incompatibilities - if portable and updatable are asked together,
+        # only portable will be built.
+        if self.portable and self.updatable:
+            print("Upgradable and portable options were required together. Building only portable.")
+            self.updatable = False
 
         for arch in self.arch:
             res = subprocess.check_output("find {path} -name '{appimage}'".format(
@@ -109,12 +114,6 @@ class Build(object):
         if self.portable and not 'portable' in self.storage_path:
             self.storage_path += "/portable"
 
-        # Incompatibilities - if portable and updatable are asked together,
-        # only portable will be built.
-        if self.portable and self.updatable:
-            print("Upgradable and portable options were required together. Building only portable.")
-            self.updatable = False
-
         for arch in self.arch:
             # Checking if a valid path has been provided
             if self.url[arch] == '-':
@@ -168,7 +167,7 @@ class Build(object):
         # At this point, let's decompress the deb packages
         subprocess.run("find .. -iname '*.deb' -exec dpkg -x {} . \;", shell=True, cwd=self.appimagedir)
         if self.portable:
-            shortversion = self.version.split('.')[0-2].join('.')
+            shortversion = str.join('.', self.version.split('.')[:3])
             subprocess.run("find . -type f -iname 'bootstraprc' -exec sed -i 's|^UserInstallation=.*|UserInstallation=\$SYSUSERCONFIG/libreoffice/{version}|g' {} \+".format(version = shortversion), shell=True, cwd=self.appimagedir)
 
         # Changing desktop file