diff --git a/library/compiler/x86/alien.factor b/library/compiler/x86/alien.factor
index 0bec8f5821..3e6e74a008 100644
--- a/library/compiler/x86/alien.factor
+++ b/library/compiler/x86/alien.factor
@@ -31,7 +31,6 @@ M: %unbox generate-node
     drop 2 input f compile-c-call  1 input push-return-reg ;
 
 : struct-ptr/size ( func -- )
-    unbox-struct generate-node ( vop -- )
     drop
     ! Increase stack size
     ESP 2 input SUB