diff --git a/engine/qclib/progtype.h b/engine/qclib/progtype.h
index 3c978210d..62f2ebf47 100644
--- a/engine/qclib/progtype.h
+++ b/engine/qclib/progtype.h
@@ -1,7 +1,8 @@
 #ifndef DLL_PROG
 
 #else
-typedef float vec3_t[3];
+typedef float vec_t;
+typedef vec_t vec3_t[3];
 #endif
 
 #ifndef t_bool