diff --git a/src/rendering/r_sky.cpp b/src/rendering/r_sky.cpp
index 96cc6083a..4d9e2a5cf 100644
--- a/src/rendering/r_sky.cpp
+++ b/src/rendering/r_sky.cpp
@@ -80,14 +80,12 @@ void InitSkyMap(FLevelLocals *Level)
 		Level->skytexture1 = TexMan.GetFrontSkyLayer(Level->skytexture1);
 	}
 
-
 	skytex1 = TexMan.GetGameTexture(Level->skytexture1, false);
 	skytex2 = TexMan.GetGameTexture(Level->skytexture2, false);
 
-	if (skytex1 == nullptr)
+	if (skytex1 == nullptr || skytex2 == nullptr)
 		return;
 
-
 	if ((Level->flags & LEVEL_DOUBLESKY) && skytex1->GetDisplayHeight() != skytex2->GetDisplayHeight())
 	{
 		Printf(TEXTCOLOR_BOLD "Both sky textures must be the same height." TEXTCOLOR_NORMAL "\n");
diff --git a/src/rendering/swrenderer/plane/r_skyplane.cpp b/src/rendering/swrenderer/plane/r_skyplane.cpp
index 48639768a..cc59301ad 100644
--- a/src/rendering/swrenderer/plane/r_skyplane.cpp
+++ b/src/rendering/swrenderer/plane/r_skyplane.cpp
@@ -74,7 +74,7 @@ namespace swrenderer
 		auto sskytex1 = GetPalettedSWTexture(Level->skytexture1, true, false, true);
 		auto sskytex2 = GetPalettedSWTexture(Level->skytexture2, true, false, true);
 
-		if (sskytex1 == nullptr)
+		if (sskytex1 == nullptr || sskytex2 == nullptr)
 			return;
 
 		skytexturemid = 0;