diff --git a/Core/Types/CkanModule.cs b/Core/Types/CkanModule.cs
index 79876902d..c0430516b 100644
--- a/Core/Types/CkanModule.cs
+++ b/Core/Types/CkanModule.cs
@@ -624,6 +624,12 @@ public bool MetadataEquals(CkanModule other)
                 return false;
             }
 
+            if (replaced_by == null ? other.replaced_by != null
+                                    : !replaced_by.Equals(other.replaced_by))
+            {
+                return false;
+            }
+
             if (provides != other.provides)
             {
                 if (provides == null || other.provides == null)