diff --git a/src/CompletionModelRoles.h b/src/CompletionModelRoles.h
new file mode 100644
index 00000000..bd6c4114
--- /dev/null
+++ b/src/CompletionModelRoles.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <QAbstractItemModel>
+
+// Interface for completion models
+namespace CompletionModel {
+
+// Start at Qt::UserRole * 2 to prevent clashes
+enum Roles
+{
+        CompletionRole = Qt::UserRole * 2, // The string to replace the active completion
+        SearchRole,                        // String completer uses for search
+};
+
+}