diff --git a/src/scripting/vm/vmexec.h b/src/scripting/vm/vmexec.h
index 0e34aa0315..38dbbc411c 100644
--- a/src/scripting/vm/vmexec.h
+++ b/src/scripting/vm/vmexec.h
@@ -774,7 +774,7 @@ begin:
 	OP(NEW_K):
 	OP(NEW):
 	{
-		PClass *cls = (PClass*)(op == OP_NEW ? reg.a[C] : konsta[C].v);
+		PClass *cls = (PClass*)(pc->op == OP_NEW ? reg.a[C] : konsta[C].v);
 		reg.a[B] = cls->CreateNew();
 		NEXTOP;
 	}
diff --git a/src/v_draw.cpp b/src/v_draw.cpp
index e5896958a8..8c66c3d382 100644
--- a/src/v_draw.cpp
+++ b/src/v_draw.cpp
@@ -462,7 +462,7 @@ static inline FColormapStyle * ListGetColormapStyle(va_list &tags)
 	return va_arg(tags, FColormapStyle *);
 }
 
-bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag, va_list tags, DrawParms *parms, bool fortext) const
+bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag, va_list& tags, DrawParms *parms, bool fortext) const
 {
 	INTBOOL boolval;
 	int intval;
diff --git a/src/v_video.h b/src/v_video.h
index a33ea22f28..968408b627 100644
--- a/src/v_video.h
+++ b/src/v_video.h
@@ -275,7 +275,7 @@ protected:
 	bool ClipBox (int &left, int &top, int &width, int &height, const BYTE *&src, const int srcpitch) const;
 	void DrawTextureV(FTexture *img, double x, double y, uint32 tag, va_list tags) = delete;
 	virtual void DrawTextureParms(FTexture *img, DrawParms &parms);
-	bool ParseDrawTextureTags (FTexture *img, double x, double y, uint32 tag, va_list tags, DrawParms *parms, bool fortext) const;
+	bool ParseDrawTextureTags (FTexture *img, double x, double y, uint32 tag, va_list& tags, DrawParms *parms, bool fortext) const;
 
 	DCanvas() {}