diff --git a/src/libcalamares/Typedefs.h b/src/libcalamares/Typedefs.h
index c71c3a695..8aefcd6af 100644
--- a/src/libcalamares/Typedefs.h
+++ b/src/libcalamares/Typedefs.h
@@ -27,14 +27,15 @@ class Job;
 
 typedef QSharedPointer< Job > job_ptr;
 
-enum Phase
+enum ModuleAction : char
 {
-    Phase_NULL = 0,
-    Prepare,
-    Install,
-    PostInstall
+    Show,
+    Exec
 };
 
+class ViewStep;
+typedef QList< ViewStep* > ViewStepList;
+
 } //ns
 
 #endif // TYPEDEFS_H