diff --git a/serde_derive/src/de.rs b/serde_derive/src/de.rs
index 9e4e6804..c10083d6 100644
--- a/serde_derive/src/de.rs
+++ b/serde_derive/src/de.rs
@@ -35,7 +35,7 @@ pub fn expand_derive_deserialize(input: &mut syn::DeriveInput) -> syn::Result<To
 
     let ident = &cont.ident;
     let params = Parameters::new(&cont);
-    let (de_impl_generics, _, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, _, ty_generics, where_clause) = params.generics_with_de_lifetime();
     let body = Stmts(deserialize_body(&cont, &params));
     let delife = params.borrowed.de_lifetime();
     let allow_deprecated = allow_deprecated(input);
@@ -171,7 +171,7 @@ impl Parameters {
     /// Split a deserialized type's generics into the pieces required for impl'ing
     /// a `Deserialize` trait for that type. Additionally appends the `'de` lifetime
     /// to list of impl generics.
-    fn generics(
+    fn generics_with_de_lifetime(
         &self,
     ) -> (
         DeImplGenerics,
@@ -664,7 +664,8 @@ fn wrap_deserialize_with(
     deserialize_with: &syn::ExprPath,
 ) -> (TokenStream, TokenStream) {
     let this_type = &params.this_type;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
     let deserializer_var = quote!(__deserializer);
 
diff --git a/serde_derive/src/de/enum_adjacently.rs b/serde_derive/src/de/enum_adjacently.rs
index 59239351..1ad038a2 100644
--- a/serde_derive/src/de/enum_adjacently.rs
+++ b/serde_derive/src/de/enum_adjacently.rs
@@ -25,7 +25,8 @@ pub(super) fn generate_body(
 ) -> Fragment {
     let this_type = &params.this_type;
     let this_value = &params.this_value;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     let (variants_stmt, variant_visitor) = enum_::prepare_enum_variant_enum(variants);
diff --git a/serde_derive/src/de/enum_externally.rs b/serde_derive/src/de/enum_externally.rs
index 75f329ec..d4c87912 100644
--- a/serde_derive/src/de/enum_externally.rs
+++ b/serde_derive/src/de/enum_externally.rs
@@ -26,7 +26,8 @@ pub(super) fn generate_body(
     cattrs: &attr::Container,
 ) -> Fragment {
     let this_type = &params.this_type;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     let type_name = cattrs.name().deserialize_name();
diff --git a/serde_derive/src/de/identifier.rs b/serde_derive/src/de/identifier.rs
index d90903bf..18a51fe7 100644
--- a/serde_derive/src/de/identifier.rs
+++ b/serde_derive/src/de/identifier.rs
@@ -84,7 +84,8 @@ pub(super) fn generate_body(
         Some(fields)
     };
 
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
     let visitor_impl = Stmts(deserialize_identifier(
         &this_value,
diff --git a/serde_derive/src/de/struct_.rs b/serde_derive/src/de/struct_.rs
index 09e13d80..b22a099c 100644
--- a/serde_derive/src/de/struct_.rs
+++ b/serde_derive/src/de/struct_.rs
@@ -22,7 +22,8 @@ pub(super) fn generate_body(
 ) -> Fragment {
     let this_type = &params.this_type;
     let this_value = &params.this_value;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     // If there are getters (implying private fields), construct the local type
@@ -431,7 +432,8 @@ pub(super) fn generate_body_in_place(
     }
 
     let this_type = &params.this_type;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     let expecting = format!("struct {}", params.type_name());
@@ -633,7 +635,7 @@ fn deserialize_map_in_place(
         });
 
     let this_type = &params.this_type;
-    let (_, _, ty_generics, _) = params.generics();
+    let (_, _, ty_generics, _) = params.generics_with_de_lifetime();
 
     let let_default = match cattrs.default() {
         attr::Default::Default => Some(quote!(
diff --git a/serde_derive/src/de/tuple.rs b/serde_derive/src/de/tuple.rs
index 7b96ae02..9db0b373 100644
--- a/serde_derive/src/de/tuple.rs
+++ b/serde_derive/src/de/tuple.rs
@@ -28,7 +28,8 @@ pub(super) fn generate_body(
 
     let this_type = &params.this_type;
     let this_value = &params.this_value;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     // If there are getters (implying private fields), construct the local type
@@ -198,7 +199,8 @@ pub(super) fn generate_body_in_place(
         .count();
 
     let this_type = &params.this_type;
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     let expecting = format!("tuple struct {}", params.type_name());
diff --git a/serde_derive/src/de/unit.rs b/serde_derive/src/de/unit.rs
index 34f90808..1eef24c4 100644
--- a/serde_derive/src/de/unit.rs
+++ b/serde_derive/src/de/unit.rs
@@ -9,7 +9,8 @@ pub(super) fn generate_body(params: &Parameters, cattrs: &attr::Container) -> Fr
     let this_type = &params.this_type;
     let this_value = &params.this_value;
     let type_name = cattrs.name().deserialize_name();
-    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) = params.generics();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        params.generics_with_de_lifetime();
     let delife = params.borrowed.de_lifetime();
 
     let expecting = format!("unit struct {}", params.type_name());