diff --git a/openjdk/manifests/init.pp b/openjdk/manifests/init.pp
index aa59f17..09333f5 100644
--- a/openjdk/manifests/init.pp
+++ b/openjdk/manifests/init.pp
@@ -3,13 +3,13 @@
 class openjdk::jdk {
 
   case $::operatingsystem {
-    "centos","redhat": {
-      package { "java-1.7.0-openjdk-devel":
+    'centos','redhat': {
+      package { 'java-1.7.0-openjdk-devel':
         ensure => installed,
       }
     }
-    "ubuntu": {
-      package { "openjdk-7-jdk":
+    'ubuntu': {
+      package { 'openjdk-7-jdk':
         ensure => installed,
       }
     }
@@ -26,13 +26,13 @@ class openjdk::jdk {
 class openjdk::jre {
 
   case $::operatingsystem {
-    "centos","redhat": {
-      package { "java-1.7.0-openjdk":
+    'centos','redhat': {
+      package { 'java-1.7.0-openjdk':
         ensure => installed,
       }
     }
-    "ubuntu": {
-      package { "openjdk-7-jre":
+    'ubuntu': {
+      package { 'openjdk-7-jre':
         ensure => installed,
       }
     }