diff --git a/src/common/textures/formats/multipatchtexture.h b/src/common/textures/formats/multipatchtexture.h
index 5c75fa4743c..d8f2713337d 100644
--- a/src/common/textures/formats/multipatchtexture.h
+++ b/src/common/textures/formats/multipatchtexture.h
@@ -170,6 +170,6 @@ class FMultipatchTextureBuilder
 	}
 
 	void AddTexturesLumps(int lump1, int lump2, int patcheslump);
-	void ParseTexture(FScanner &sc, ETextureType usetype);
+	void ParseTexture(FScanner &sc, ETextureType usetype, int deflump);
 	void ResolveAllPatches();
 };
diff --git a/src/common/textures/multipatchtexturebuilder.cpp b/src/common/textures/multipatchtexturebuilder.cpp
index 89d4adaf385..d306c3bb24a 100644
--- a/src/common/textures/multipatchtexturebuilder.cpp
+++ b/src/common/textures/multipatchtexturebuilder.cpp
@@ -606,7 +606,7 @@ void FMultipatchTextureBuilder::ParsePatch(FScanner &sc, BuildInfo &info, TexPar
 //
 //==========================================================================
 
-void FMultipatchTextureBuilder::ParseTexture(FScanner &sc, ETextureType UseType)
+void FMultipatchTextureBuilder::ParseTexture(FScanner &sc, ETextureType UseType, int deflump)
 {
 	BuildInfo &buildinfo = BuiltTextures[BuiltTextures.Reserve(1)];
 
@@ -637,6 +637,7 @@ void FMultipatchTextureBuilder::ParseTexture(FScanner &sc, ETextureType UseType)
 	sc.MustGetStringName(",");
 	sc.MustGetNumber();
 	buildinfo.Height = sc.Number;
+	buildinfo.DefinitionLump = deflump;
 
 	bool offset2set = false;
 	if (sc.CheckString("{"))
@@ -911,6 +912,7 @@ void FMultipatchTextureBuilder::ResolveAllPatches()
 				{
 					auto img = new FMultiPatchTexture(buildinfo.Width, buildinfo.Height, buildinfo.Parts, buildinfo.bComplex, buildinfo.textual);
 					auto itex = new FImageTexture(img);
+					itex->SetSourceLump(buildinfo.DefinitionLump);
 					AddImageToTexture(itex, buildinfo);
 				}
 				BuiltTextures.Delete(i);
diff --git a/src/common/textures/texturemanager.cpp b/src/common/textures/texturemanager.cpp
index f0163ab3374..848f18bc20a 100644
--- a/src/common/textures/texturemanager.cpp
+++ b/src/common/textures/texturemanager.cpp
@@ -782,23 +782,23 @@ void FTextureManager::ParseTextureDef(int lump, FMultipatchTextureBuilder &build
 		}
 		else if (sc.Compare("texture"))
 		{
-			build.ParseTexture(sc, ETextureType::Override);
+			build.ParseTexture(sc, ETextureType::Override, lump);
 		}
 		else if (sc.Compare("sprite"))
 		{
-			build.ParseTexture(sc, ETextureType::Sprite);
+			build.ParseTexture(sc, ETextureType::Sprite, lump);
 		}
 		else if (sc.Compare("walltexture"))
 		{
-			build.ParseTexture(sc, ETextureType::Wall);
+			build.ParseTexture(sc, ETextureType::Wall, lump);
 		}
 		else if (sc.Compare("flat"))
 		{
-			build.ParseTexture(sc, ETextureType::Flat);
+			build.ParseTexture(sc, ETextureType::Flat, lump);
 		}
 		else if (sc.Compare("graphic"))
 		{
-			build.ParseTexture(sc, ETextureType::MiscPatch);
+			build.ParseTexture(sc, ETextureType::MiscPatch, lump);
 		}
 		else if (sc.Compare("#include"))
 		{
diff --git a/src/common/textures/textures.h b/src/common/textures/textures.h
index 9fc99bda9b4..f8fd763cffa 100644
--- a/src/common/textures/textures.h
+++ b/src/common/textures/textures.h
@@ -253,6 +253,7 @@ class FTexture : public RefCountedBase
 	bool isCanvas() const { return bHasCanvas; }
 	
 	int GetSourceLump() { return SourceLump; }	// needed by the scripted GetName method.
+	void SetSourceLump(int sl) { SourceLump  = sl; }
 	bool FindHoles(const unsigned char * buffer, int w, int h);
 
 	void CopySize(FTexture* BaseTexture)