diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..04204c7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+config
diff --git a/config b/config.example
similarity index 100%
rename from config
rename to config.example
diff --git a/launch.sh b/launch.sh
index 142dd5a..2015a50 100755
--- a/launch.sh
+++ b/launch.sh
@@ -15,6 +15,10 @@ POSTGRES_VERSION="9.5"
 GISSMO_DOCKER_NAME="gissmo"
 
 ## User
+if ! test -f config; then
+  echo "'config' file not found. Copy config.example to config one and try again!"
+  exit 1
+fi
 . config || exit 1
 
 ## Composed