diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/GnollTrickster.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/GnollTrickster.java
index 2fa2e8aa1..ac01c05a3 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/GnollTrickster.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/GnollTrickster.java
@@ -107,7 +107,9 @@ public class GnollTrickster extends Gnoll {
 	@Override
 	public void aggro(Char ch) {
 		//cannot be aggroed to something it can't see
-		if (ch == null || fieldOfView == null || fieldOfView[ch.pos]) {
+		//skip this check if FOV isn't initialized
+		if (ch == null || fieldOfView == null
+				|| fieldOfView.length != Dungeon.level.length() || fieldOfView[ch.pos]) {
 			super.aggro(ch);
 		}
 	}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Scorpio.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Scorpio.java
index 209f459b0..865088d22 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Scorpio.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Scorpio.java
@@ -97,7 +97,9 @@ public class Scorpio extends Mob {
 	@Override
 	public void aggro(Char ch) {
 		//cannot be aggroed to something it can't see
-		if (ch == null || fieldOfView == null || fieldOfView[ch.pos]) {
+		//skip this check if FOV isn't initialized
+		if (ch == null || fieldOfView == null
+				|| fieldOfView.length != Dungeon.level.length() || fieldOfView[ch.pos]) {
 			super.aggro(ch);
 		}
 	}