diff --git a/include/QF/pr_comp.h b/include/QF/pr_comp.h
index 68fff5f41..f2530a0cc 100644
--- a/include/QF/pr_comp.h
+++ b/include/QF/pr_comp.h
@@ -35,6 +35,7 @@ typedef enum {
 	ev_field,
 	ev_func,
 	ev_pointer,
+	ev_quaternion,
 	
 	ev_type_count		// not a type, gives number of types
 } etype_t;