diff --git a/src/g_inventory/a_artifacts.cpp b/src/g_inventory/a_artifacts.cpp
index 6ece99b38e..2f2cc3c0e2 100644
--- a/src/g_inventory/a_artifacts.cpp
+++ b/src/g_inventory/a_artifacts.cpp
@@ -167,7 +167,7 @@ void APowerup::Serialize(FSerializer &arc)
 
 PalEntry APowerup::GetBlend ()
 {
-	if (EffectTics <= BLINKTHRESHOLD && !(EffectTics & 8))
+	if (isBlinking())
 		return 0;
 
 	if (IsSpecialColormap(BlendColor)) return 0;
@@ -202,6 +202,22 @@ void APowerup::CallInitEffect()
 	else InitEffect();
 }
 
+//===========================================================================
+//
+// APowerup :: isBlinking
+//
+//===========================================================================
+
+bool APowerup::isBlinking() const
+{
+	return (EffectTics <= BLINKTHRESHOLD && (EffectTics & 8) && !(ItemFlags & IF_NOSCREENBLINK));
+}
+
+DEFINE_ACTION_FUNCTION(APowerup, isBlinking)
+{
+	PARAM_SELF_PROLOGUE(APowerup);
+	ACTION_RETURN_BOOL(self->isBlinking());
+}
 
 //===========================================================================
 //
@@ -222,7 +238,7 @@ void APowerup::DoEffect ()
 
 		if (Colormap != NOFIXEDCOLORMAP)
 		{
-			if (EffectTics > BLINKTHRESHOLD || (EffectTics & 8))
+			if (!isBlinking())
 			{
 				Owner->player->fixedcolormap = Colormap;
 			}
@@ -294,7 +310,7 @@ bool APowerup::DrawPowerup (int x, int y)
 	{
 		return false;
 	}
-	if (EffectTics > BLINKTHRESHOLD || !(EffectTics & 16))
+	if (!isBlinking())
 	{
 		FTexture *pic = TexMan(Icon);
 		screen->DrawTexture (pic, x, y,
@@ -903,7 +919,7 @@ void APowerLightAmp::DoEffect ()
 
 	if (Owner->player != NULL && Owner->player->fixedcolormap < NUMCOLORMAPS)
 	{
-		if (EffectTics > BLINKTHRESHOLD || (EffectTics & 8))
+		if (!isBlinking())
 		{	
 			Owner->player->fixedlightlevel = 1;
 		}
diff --git a/src/g_inventory/a_artifacts.h b/src/g_inventory/a_artifacts.h
index f8eec5554d..95182ce43b 100644
--- a/src/g_inventory/a_artifacts.h
+++ b/src/g_inventory/a_artifacts.h
@@ -30,6 +30,7 @@ public:
 	virtual void InitEffect ();
 	virtual void DoEffect () override;
 	virtual void EndEffect ();
+	bool isBlinking() const;
 
 protected:
 	void CallInitEffect();
diff --git a/src/g_inventory/a_pickups.h b/src/g_inventory/a_pickups.h
index ea87cfe85b..eedadbdffe 100644
--- a/src/g_inventory/a_pickups.h
+++ b/src/g_inventory/a_pickups.h
@@ -46,6 +46,7 @@ enum
 	IF_ALWAYSRESPAWN	= 1<<23,	// Always respawn, regardless of dmflag
 	IF_TRANSFER			= 1<<24,	// All inventory items that the inventory item contains is also transfered to the pickuper
 	IF_NOTELEPORTFREEZE	= 1<<25,	// does not 'freeze' the player right after teleporting.
+	IF_NOSCREENBLINK	= 1<<26,	// Does not blink the screen overlay when expiring.
 };
 
 
diff --git a/src/scripting/thingdef_data.cpp b/src/scripting/thingdef_data.cpp
index 46485b2268..a1f2786da7 100644
--- a/src/scripting/thingdef_data.cpp
+++ b/src/scripting/thingdef_data.cpp
@@ -408,6 +408,7 @@ static FFlagDef InventoryFlagDefs[] =
 	DEFINE_FLAG(IF, ALWAYSRESPAWN, AInventory, ItemFlags),
 	DEFINE_FLAG(IF, TRANSFER, AInventory, ItemFlags),
 	DEFINE_FLAG(IF, NOTELEPORTFREEZE, AInventory, ItemFlags),
+	DEFINE_FLAG(IF, NOSCREENBLINK, AInventory, ItemFlags),
 
 	DEFINE_DUMMY_FLAG(FORCERESPAWNINSURVIVAL, false),
 
diff --git a/wadsrc/static/zscript/shared/powerups.txt b/wadsrc/static/zscript/shared/powerups.txt
index 549c3eece4..2842989f0c 100644
--- a/wadsrc/static/zscript/shared/powerups.txt
+++ b/wadsrc/static/zscript/shared/powerups.txt
@@ -28,6 +28,7 @@ class Powerup : Inventory native
 
 	native virtual void InitEffect();
 	native virtual void EndEffect();
+	native bool isBlinking();
 	
 }