diff --git a/kickstart/recipes/kickstart/file.sh b/kickstart/recipes/kickstart/file.sh
index 960de3d..af35c17 100644
--- a/kickstart/recipes/kickstart/file.sh
+++ b/kickstart/recipes/kickstart/file.sh
@@ -4,5 +4,5 @@ kickstart.file.link() {
 }
 
 kickstart.file.contains() {
-  grep -q $2 $1 2>/dev/null
+  grep -q "$2" $1 2>/dev/null
 }
diff --git a/kickstart/recipes/kickstart/stream.sh b/kickstart/recipes/kickstart/stream.sh
index db5be72..8c76673 100644
--- a/kickstart/recipes/kickstart/stream.sh
+++ b/kickstart/recipes/kickstart/stream.sh
@@ -1,3 +1,3 @@
 kickstart.stream.contains() {
-  grep -q $1 2>/dev/null
+  grep -q "$1" 2>/dev/null
 }