diff --git a/src/g_game.cpp b/src/g_game.cpp
index 397f9eb75d..81d12d080b 100644
--- a/src/g_game.cpp
+++ b/src/g_game.cpp
@@ -3154,6 +3154,7 @@ DEFINE_GLOBAL(globalfreeze)
 DEFINE_GLOBAL(gametic)
 DEFINE_GLOBAL(demoplayback)
 DEFINE_GLOBAL(automapactive);
+DEFINE_GLOBAL(viewactive);
 DEFINE_GLOBAL(Net_Arbitrator);
 DEFINE_GLOBAL(netgame);
 DEFINE_GLOBAL(paused);
diff --git a/wadsrc/static/zscript/doombase.zs b/wadsrc/static/zscript/doombase.zs
index 141b2b0c24..9dd5e550b1 100644
--- a/wadsrc/static/zscript/doombase.zs
+++ b/wadsrc/static/zscript/doombase.zs
@@ -8,7 +8,8 @@ extend struct _
 	native readonly Array<@TerrainDef> Terrains;
 	native int validcount;
 	native play @DehInfo deh;
-	native readonly bool automapactive;
+	native readonly ui bool automapactive;	// is automap enabled?
+	native readonly ui bool viewactive;		// if automap is active, true = main automap, false = overlay automap.
 	native readonly TextureID skyflatnum;
 	native readonly int gametic;
 	native readonly int Net_Arbitrator;