diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index e53b8dec6d..7115b611c1 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -8299,9 +8299,6 @@ scriptwait:
 					line->args[4] = STACK(1);
 					DPrintf("Set special on line %d (id %d) to %d(%d,%d,%d,%d,%d)\n",
 						linenum, STACK(7), specnum, arg0, STACK(4), STACK(3), STACK(2), STACK(1));
-
-					// [ZZ] re-link with portals (in case this was something related to portal specials)
-					P_CheckPortal(line);
 				}
 				sp -= 7;
 			}
diff --git a/src/p_buildmap.cpp b/src/p_buildmap.cpp
index e72d87d06f..295dff8314 100644
--- a/src/p_buildmap.cpp
+++ b/src/p_buildmap.cpp
@@ -630,11 +630,6 @@ static void LoadWalls (walltype *walls, int numwalls, sectortype *bsec)
 		}
 	}
 
-	// [ZZ] set initial line portal link
-	//      (even though this is rather hard to happen... build doesn't have portals in our sense and it's walls don't get translated into anything like this)
-	for (int i = 0; i < numlines; i++)
-		P_CheckPortal(&lines[i]);
-
 	// Finish setting sector properties that depend on walls
 	for (i = 0; i < numsectors; ++i, ++bsec)
 	{