diff --git a/Content.Server/Construction/ConstructionSystem.Graph.cs b/Content.Server/Construction/ConstructionSystem.Graph.cs
index e6497b1116..ba69e5300f 100644
--- a/Content.Server/Construction/ConstructionSystem.Graph.cs
+++ b/Content.Server/Construction/ConstructionSystem.Graph.cs
@@ -206,8 +206,9 @@ namespace Content.Server.Construction
                     // NOTE: Only Container is supported by Construction!
                     var otherContainer = _containerSystem.EnsureContainer<Container>(newUid, container, newContainerManager);
 
-                    foreach (var entity in ourContainer.ContainedEntities)
+                    for (var i = ourContainer.ContainedEntities.Count - 1; i >= 0; i--)
                     {
+                        var entity = ourContainer.ContainedEntities[i];
                         ourContainer.ForceRemove(entity);
                         otherContainer.Insert(entity);
                     }
diff --git a/Resources/Changelog/Parts/duple.yml b/Resources/Changelog/Parts/duple.yml
new file mode 100644
index 0000000000..848bb24992
--- /dev/null
+++ b/Resources/Changelog/Parts/duple.yml
@@ -0,0 +1,4 @@
+author: Zumorica
+changes:
+  - type: Fix # One of the following: Add, Remove, Tweak, Fix
+    message: Fix computer dupe bug.