diff --git a/src/turkish/StructuralTur.gf b/src/turkish/StructuralTur.gf
index 7034ce8d4..ab9e1a80f 100644
--- a/src/turkish/StructuralTur.gf
+++ b/src/turkish/StructuralTur.gf
@@ -53,4 +53,7 @@ concrete StructuralTur of Structural = CatTur **
     above_Prep =
       mkPrep "üzerinde" Gen ;
 
+    behind_Prep =
+      mkPrep "arkasında" Gen;
+
 }