diff --git a/src/r_data/portalgroups.cpp b/src/r_data/portalgroups.cpp
index 25bbdd198..2560ce3d9 100644
--- a/src/r_data/portalgroups.cpp
+++ b/src/r_data/portalgroups.cpp
@@ -468,36 +468,39 @@ void InitPortalGroups(FLevelLocals *Level)
 
 CCMD(dumpportals)
 {
-	auto Level = &level;
-	for(unsigned i=0;i<Level->portalGroups.Size(); i++)
+	for (auto Level : AllLevels())
 	{
-		auto p = Level->portalGroups[i];
-		double xdisp = p->mDisplacement.X;
-		double ydisp = p->mDisplacement.Y;
-		Printf(PRINT_LOG, "Portal #%d, %s, displacement = (%f,%f)\n", i, p->plane==0? "floor":"ceiling",
-			xdisp, ydisp);
-		Printf(PRINT_LOG, "Coverage:\n");
-		for(auto &sub : Level->subsectors)
+		Printf("Portal groups for %s\n", Level->MapName.GetChars());
+		for (unsigned i = 0; i < Level->portalGroups.Size(); i++)
 		{
-			auto port = sub.render_sector->GetPortalGroup(p->plane);
-			if (port == p)
+			auto p = Level->portalGroups[i];
+			double xdisp = p->mDisplacement.X;
+			double ydisp = p->mDisplacement.Y;
+			Printf(PRINT_LOG, "Portal #%d, %s, displacement = (%f,%f)\n", i, p->plane == 0 ? "floor" : "ceiling",
+				xdisp, ydisp);
+			Printf(PRINT_LOG, "Coverage:\n");
+			for (auto &sub : Level->subsectors)
 			{
-				Printf(PRINT_LOG, "\tSubsector %d (%d):\n\t\t", sub.Index(), sub.render_sector->sectornum);
-				for(unsigned k = 0;k< sub.numlines; k++)
+				auto port = sub.render_sector->GetPortalGroup(p->plane);
+				if (port == p)
 				{
-					Printf(PRINT_LOG, "(%.3f,%.3f), ",	sub.firstline[k].v1->fX() + xdisp, sub.firstline[k].v1->fY() + ydisp);
-				}
-				Printf(PRINT_LOG, "\n\t\tCovered by subsectors:\n");
-				FPortalCoverage *cov = &sub.portalcoverage[p->plane];
-				for(int l = 0;l< cov->sscount; l++)
-				{
-					subsector_t *csub = &Level->subsectors[cov->subsectors[l]];
-					Printf(PRINT_LOG, "\t\t\t%5d (%4d): ", cov->subsectors[l], csub->render_sector->sectornum);
-					for(unsigned m = 0;m< csub->numlines; m++)
+					Printf(PRINT_LOG, "\tSubsector %d (%d):\n\t\t", sub.Index(), sub.render_sector->sectornum);
+					for (unsigned k = 0; k < sub.numlines; k++)
 					{
-						Printf(PRINT_LOG, "(%.3f,%.3f), ",	csub->firstline[m].v1->fX(), csub->firstline[m].v1->fY());
+						Printf(PRINT_LOG, "(%.3f,%.3f), ", sub.firstline[k].v1->fX() + xdisp, sub.firstline[k].v1->fY() + ydisp);
+					}
+					Printf(PRINT_LOG, "\n\t\tCovered by subsectors:\n");
+					FPortalCoverage *cov = &sub.portalcoverage[p->plane];
+					for (int l = 0; l < cov->sscount; l++)
+					{
+						subsector_t *csub = &Level->subsectors[cov->subsectors[l]];
+						Printf(PRINT_LOG, "\t\t\t%5d (%4d): ", cov->subsectors[l], csub->render_sector->sectornum);
+						for (unsigned m = 0; m < csub->numlines; m++)
+						{
+							Printf(PRINT_LOG, "(%.3f,%.3f), ", csub->firstline[m].v1->fX(), csub->firstline[m].v1->fY());
+						}
+						Printf(PRINT_LOG, "\n");
 					}
-					Printf(PRINT_LOG, "\n");
 				}
 			}
 		}