diff --git a/Mathlib/Algebra/Order/Nonneg/Field.lean b/Mathlib/Algebra/Order/Nonneg/Field.lean
index 49c06d2e70cdd..0513107a568ff 100644
--- a/Mathlib/Algebra/Order/Nonneg/Field.lean
+++ b/Mathlib/Algebra/Order/Nonneg/Field.lean
@@ -103,6 +103,6 @@ end LinearOrderedSemifield
 
 instance linearOrderedCommGroupWithZero [LinearOrderedField α] :
     LinearOrderedCommGroupWithZero { x : α // 0 ≤ x } :=
-  LinearOrderedSemifield.toLinearOrderedCommGroupWithZero
+  inferInstance
 
 end Nonneg