diff --git a/lib.nix b/lib.nix
index 43b99a6..29a81fb 100644
--- a/lib.nix
+++ b/lib.nix
@@ -107,7 +107,7 @@ in
         text = ''
                   if [ ! -d "${data_dir}" ]; then
                     echo "Database directory does not exist. Initializing"
-                    initdb -D ${data_dir}
+                    ${package}/bin/initdb -D ${data_dir}
                   fi
           ${package}/bin/postgres -D ${data_dir} --config-file ${configFile}