diff --git a/mlab/citydeclouds/cdcapart1 b/mlab/citydeclouds/cdcapart1
index 22417cbe0..99054b3e6 100644
--- a/mlab/citydeclouds/cdcapart1
+++ b/mlab/citydeclouds/cdcapart1
@@ -17427,6 +17427,10 @@ name stonefloor
 x 26
 y 53
 end
+arch swall_1_4_half
+x 26
+y 53
+end
 arch stwall_2_1_1
 x 26
 y 53
@@ -17461,6 +17465,10 @@ name stonefloor
 x 26
 y 55
 end
+arch swall_1_4_half
+x 26
+y 55
+end
 arch stwall_2_1_1
 x 26
 y 55
@@ -17998,7 +18006,7 @@ arch slevel_3_3
 x 27
 y 53
 end
-arch swall_1_4
+arch swall_2_1_2
 x 27
 y 53
 end
@@ -18015,7 +18023,7 @@ arch slevel_3_1
 x 27
 y 55
 end
-arch swall_1_4
+arch swall_2_1_2
 x 27
 y 55
 end