diff --git a/.gitignore b/.gitignore
index 6e8cdaae..30c37338 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules
 doc
 coverage.html
+coverage
diff --git a/lib/utils.js b/lib/utils.js
index e867265b..dc86cd87 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -4,7 +4,7 @@ function safeRequire(module) {
     try {
         return require(module);
     } catch (e) {
-        console.log('Run "npm install ' + module + '" command to use jugglingdb using this database engine');
+        console.log('Run "npm install jugglingdb ' + module + '" command to use jugglingdb using ' + module + ' database engine');
         process.exit(1);
     }
 }