diff --git a/src/scripting/thingdef_data.cpp b/src/scripting/thingdef_data.cpp
index dc7fcacc30..cf1d0eca1c 100644
--- a/src/scripting/thingdef_data.cpp
+++ b/src/scripting/thingdef_data.cpp
@@ -385,6 +385,7 @@ static FFlagDef ActorFlagDefs[]=
 	DEFINE_FLAG(RF2, CAMFOLLOWSPLAYER, AActor, renderflags2),
 	DEFINE_FLAG(RF2, ISOMETRICSPRITES, AActor, renderflags2),
 	DEFINE_FLAG(RF2, SQUAREPIXELS, AActor, renderflags2),
+	DEFINE_FLAG(RF2, STRETCHPIXELS, AActor, renderflags2),
 
 	// Bounce flags
 	DEFINE_FLAG2(BOUNCE_Walls, BOUNCEONWALLS, AActor, BounceFlags),