diff --git a/derive-encode/Cargo.toml b/derive-encode/Cargo.toml
index 145c0159..064cce7d 100644
--- a/derive-encode/Cargo.toml
+++ b/derive-encode/Cargo.toml
@@ -18,6 +18,7 @@ syn = "2"
 
 [dev-dependencies]
 prometheus-client = { path = "../", features = ["protobuf"] }
+trybuild = "1"
 
 [lib]
-proc-macro = true
\ No newline at end of file
+proc-macro = true
diff --git a/derive-encode/src/lib.rs b/derive-encode/src/lib.rs
index 5b3cbe32..a3c0aac3 100644
--- a/derive-encode/src/lib.rs
+++ b/derive-encode/src/lib.rs
@@ -71,15 +71,15 @@ pub fn derive_encode_label_set(input: TokenStream) -> TokenStream {
     };
 
     let gen = quote! {
-        impl prometheus_client::encoding::EncodeLabelSet for #name {
-            fn encode(&self, encoder: &mut prometheus_client::encoding::LabelSetEncoder) -> std::result::Result<(), std::fmt::Error> {
-                use prometheus_client::encoding::EncodeLabel;
-                use prometheus_client::encoding::EncodeLabelKey;
-                use prometheus_client::encoding::EncodeLabelValue;
+        impl ::prometheus_client::encoding::EncodeLabelSet for #name {
+            fn encode(&self, encoder: &mut ::prometheus_client::encoding::LabelSetEncoder) -> ::core::result::Result<(), ::core::fmt::Error> {
+                use ::prometheus_client::encoding::EncodeLabel;
+                use ::prometheus_client::encoding::EncodeLabelKey;
+                use ::prometheus_client::encoding::EncodeLabelValue;
 
                 #body
 
-                Ok(())
+                ::core::result::Result::Ok(())
             }
         }
     };
@@ -118,13 +118,13 @@ pub fn derive_encode_label_value(input: TokenStream) -> TokenStream {
     };
 
     let gen = quote! {
-        impl prometheus_client::encoding::EncodeLabelValue for #name {
-            fn encode(&self, encoder: &mut prometheus_client::encoding::LabelValueEncoder) -> std::result::Result<(), std::fmt::Error> {
-                use std::fmt::Write;
+        impl ::prometheus_client::encoding::EncodeLabelValue for #name {
+            fn encode(&self, encoder: &mut ::prometheus_client::encoding::LabelValueEncoder) -> ::core::result::Result<(), ::core::fmt::Error> {
+                use ::core::fmt::Write;
 
                 #body
 
-                Ok(())
+                ::core::result::Result::Ok(())
             }
         }
     };
diff --git a/derive-encode/tests/build/redefine-prelude-symbols.rs b/derive-encode/tests/build/redefine-prelude-symbols.rs
new file mode 100644
index 00000000..ce48ec56
--- /dev/null
+++ b/derive-encode/tests/build/redefine-prelude-symbols.rs
@@ -0,0 +1,36 @@
+#![allow(unused_imports)]
+
+// Empty module has nothing and can be used to redefine symbols.
+mod empty {}
+
+// redefine the prelude `::std`
+use empty as std;
+
+// redefine the dependency `::prometheus_client`
+use empty as prometheus_client;
+
+// redefine the prelude `::core::result::Result`.
+type Result = ();
+
+enum TResult {
+    Ok,
+    Err,
+}
+
+// redefine the prelude `::core::result::Result::Ok/Err`.
+use TResult::Ok;
+use TResult::Err;
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash, ::prometheus_client::encoding::EncodeLabelSet)]
+struct LableSet {
+    a: String,
+    b: LabelEnum,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, ::prometheus_client::encoding::EncodeLabelValue)]
+enum LabelEnum {
+    A,
+    B,
+}
+
+fn main() {}
diff --git a/derive-encode/tests/lib.rs b/derive-encode/tests/lib.rs
index 5c7eb54d..5d0910f3 100644
--- a/derive-encode/tests/lib.rs
+++ b/derive-encode/tests/lib.rs
@@ -205,3 +205,9 @@ fn flatten() {
         + "# EOF\n";
     assert_eq!(expected, buffer);
 }
+
+#[test]
+fn build() {
+    let t = trybuild::TestCases::new();
+    t.pass("tests/build/redefine-prelude-symbols.rs")
+}