diff --git a/Utils/MapEdit/LayerTrigger.cpp b/Utils/MapEdit/LayerTrigger.cpp
index 199a058da..7887c8b50 100644
--- a/Utils/MapEdit/LayerTrigger.cpp
+++ b/Utils/MapEdit/LayerTrigger.cpp
@@ -197,7 +197,7 @@ void	CLayerTrigger::GUIInit(CCore *Core)
 		GUITrigger.m_TargetYSpin.SetRange(0,32000);
 		GUITrigger.m_TargetWSpin.SetRange(1,32000);
 		GUITrigger.m_TargetHSpin.SetRange(1,32000);
-		GUITrigger.m_ValSpin.SetRange(1,32000);
+		GUITrigger.m_ValSpin.SetRange(-16000,16000);
 }
 
 /*****************************************************************************/
diff --git a/tools/Data/bin/MkLevel.exe b/tools/Data/bin/MkLevel.exe
index 42301495a..a7cdf32b2 100644
Binary files a/tools/Data/bin/MkLevel.exe and b/tools/Data/bin/MkLevel.exe differ
diff --git a/tools/Data/include/dstructs.h b/tools/Data/include/dstructs.h
index ff32dceb4..7915ebe82 100644
--- a/tools/Data/include/dstructs.h
+++ b/tools/Data/include/dstructs.h
@@ -364,7 +364,7 @@ struct	sThingTrigger
 	u8			Width,Height;
 	sThingPoint	TargetPos;
 	sThingPoint	TargetSize;
-	u16			Val0,Val1;
+	s16			Val0,Val1;
 }; // 12
 
 struct	sThingHazard
diff --git a/tools/MapEdit/MapEdit.exe b/tools/MapEdit/MapEdit.exe
index 6d123dc7b..801de64b1 100644
Binary files a/tools/MapEdit/MapEdit.exe and b/tools/MapEdit/MapEdit.exe differ