diff --git a/src/testFixtures/groovy/grails/plugin/geb/ContainerGebSpec.groovy b/src/testFixtures/groovy/grails/plugin/geb/ContainerGebSpec.groovy
index 9eb0259..98dc535 100644
--- a/src/testFixtures/groovy/grails/plugin/geb/ContainerGebSpec.groovy
+++ b/src/testFixtures/groovy/grails/plugin/geb/ContainerGebSpec.groovy
@@ -72,7 +72,7 @@ abstract class ContainerGebSpec extends Specification implements ManagedGebTest,
 
     @PackageScope
     void initialize() {
-        if (webDriverContainer) {
+        if (initialized) {
             return
         }
 
@@ -158,4 +158,8 @@ abstract class ContainerGebSpec extends Specification implements ManagedGebTest,
     private boolean isHostNameChanged() {
         return hostNameFromContainer != DEFAULT_HOSTNAME_FROM_CONTAINER
     }
+
+    private boolean isInitialized() {
+        webDriverContainer == null
+    }
 }
\ No newline at end of file