diff --git a/src/r_poly_sprite.cpp b/src/r_poly_sprite.cpp
index c17bc5909f..e5d8e0ce56 100644
--- a/src/r_poly_sprite.cpp
+++ b/src/r_poly_sprite.cpp
@@ -74,7 +74,7 @@ void RenderPolySprite::Render(const TriMatrix &worldToClip, const Vec4f &clipPla
 
 	bool flipTextureX = false;
 	FTexture *tex = GetSpriteTexture(thing, flipTextureX);
-	if (tex == nullptr)
+	if (tex == nullptr || tex->UseType == FTexture::TEX_Null)
 		return;
 
 	DVector2 spriteScale = thing->Scale;
diff --git a/src/r_poly_wallsprite.cpp b/src/r_poly_wallsprite.cpp
index 0521fb06e3..e7fe267b8b 100644
--- a/src/r_poly_wallsprite.cpp
+++ b/src/r_poly_wallsprite.cpp
@@ -38,7 +38,7 @@ void RenderPolyWallSprite::Render(const TriMatrix &worldToClip, const Vec4f &cli
 
 	bool flipTextureX = false;
 	FTexture *tex = RenderPolySprite::GetSpriteTexture(thing, flipTextureX);
-	if (tex == nullptr)
+	if (tex == nullptr || tex->UseType == FTexture::TEX_Null)
 		return;
 
 	DVector2 spriteScale = thing->Scale;