diff --git a/preinstall b/preinstall
index debc2d5..ccf680c 100755
--- a/preinstall
+++ b/preinstall
@@ -23,4 +23,7 @@ package_list = [["gcc", "/usr/bin/gcc"]]
 packages, required_packages = "", RequiredPackages(package_list)
 for package in required_packages.to_be_installed:
     packages = packages + package + " "
-os.system("sudo pacman -S %s" % packages)
+try:
+    os.system("sudo pacman -S %s" % packages)
+except:
+    os.system("pacman -S %s" % packages)