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-rw-r--r--src/Xanthous/Data/EntityMap.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Xanthous/Data/EntityMap.hs b/src/Xanthous/Data/EntityMap.hs
index 401e395547e1..e713aff32c6b 100644
--- a/src/Xanthous/Data/EntityMap.hs
+++ b/src/Xanthous/Data/EntityMap.hs
@@ -101,7 +101,7 @@ _EntityMap = iso hither yon
     yon poses = alaf Endo foldMap (uncurry insertAt) poses emptyEntityMap
 
 instance Semigroup (EntityMap a) where
-  em₁ <> em₂ = alaf Endo foldMap (uncurry insertAt) (em₁ ^. _EntityMap) em₂
+  em₁ <> em₂ = alaf Endo foldMap (uncurry insertAt) (em₂ ^. _EntityMap) em₁
 
 instance Monoid (EntityMap a) where
   mempty = emptyEntityMap