diff --git a/slpkg/slackbuild.py b/slpkg/slackbuild.py
index 54230c64..d070f400 100644
--- a/slpkg/slackbuild.py
+++ b/slpkg/slackbuild.py
@@ -140,10 +140,15 @@ class Slackbuilds:
 
     def download_slackbuilds_and_build(self):
         """ Downloads files and sources and starting the build. """
+        inst_ver = '0'
+
         for sbo in self.install_order:
 
             package = self.utils.is_installed(sbo)
-            inst_ver = self.utils.split_installed_pkg(package)[1]
+
+            if package:
+                inst_ver = self.utils.split_installed_pkg(package)[1]
+
             repo_ver = SBoQueries(sbo).version()
 
             if (self.mode == 'install' and LooseVersion(repo_ver) > LooseVersion(inst_ver) or