diff --git a/src/lib/Hydra/Helper/Nix.pm b/src/lib/Hydra/Helper/Nix.pm
index c758bd91..1865979b 100644
--- a/src/lib/Hydra/Helper/Nix.pm
+++ b/src/lib/Hydra/Helper/Nix.pm
@@ -66,7 +66,7 @@ sub getHydraPath {
 
 sub getHydraDBPath {
     my $db = $ENV{"HYDRA_DBI"};
-    if ($db ne "") {
+    if ( defined $db ) {
       return $db ;
     }
     else {