diff --git a/proptest-derive/src/ast.rs b/proptest-derive/src/ast.rs
index 178a09e3..ff43b8b9 100644
--- a/proptest-derive/src/ast.rs
+++ b/proptest-derive/src/ast.rs
@@ -106,8 +106,6 @@ impl Impl {
 
         let _top = call_site_ident(TOP_PARAM_NAME);
 
-        let _const = call_site_ident(&format!("_IMPL_ARBITRARY_FOR_{}", typ));
-
         // Linearise everything. We're done after this.
         //
         // NOTE: The clippy::arc_with_non_send_sync lint is disabled here because the strategies
@@ -118,7 +116,7 @@ impl Impl {
         let q = quote! {
             #[allow(non_upper_case_globals)]
             #[allow(clippy::arc_with_non_send_sync)]
-            const #_const: () = {
+            const _: () = {
             extern crate proptest as _proptest;
 
             impl #impl_generics _proptest::arbitrary::Arbitrary
diff --git a/proptest-derive/src/tests.rs b/proptest-derive/src/tests.rs
index 788a6e7c..10d80614 100644
--- a/proptest-derive/src/tests.rs
+++ b/proptest-derive/src/tests.rs
@@ -80,7 +80,7 @@ test! {
     } expands to {
         #[allow(non_upper_case_globals)]
         #[allow(clippy::arc_with_non_send_sync)]
-        const _IMPL_ARBITRARY_FOR_MyUnitStruct : () = {
+        const _: () = {
             extern crate proptest as _proptest;
         impl _proptest::arbitrary::Arbitrary for MyUnitStruct {
             type Parameters = ();
@@ -101,7 +101,7 @@ test! {
     } expands to {
         #[allow(non_upper_case_globals)]
         #[allow(clippy::arc_with_non_send_sync)]
-        const _IMPL_ARBITRARY_FOR_MyTupleUnitStruct : () = {
+        const _: () = {
             extern crate proptest as _proptest;
         impl _proptest::arbitrary::Arbitrary for MyTupleUnitStruct {
             type Parameters = ();
@@ -122,7 +122,7 @@ test! {
     } expands to {
         #[allow(non_upper_case_globals)]
         #[allow(clippy::arc_with_non_send_sync)]
-        const _IMPL_ARBITRARY_FOR_MyNamedUnitStruct : () = {
+        const _: () = {
             extern crate proptest as _proptest;
         impl _proptest::arbitrary::Arbitrary for MyNamedUnitStruct {
             type Parameters = ();