diff --git a/crates/core/src/conn/acme/listener.rs b/crates/core/src/conn/acme/listener.rs
index 0cb08d1f8..c400917e9 100644
--- a/crates/core/src/conn/acme/listener.rs
+++ b/crates/core/src/conn/acme/listener.rs
@@ -228,9 +228,11 @@ where
             .iter()
             .map(|h| {
                 let mut versions = h.http_versions.clone();
+                #[cfg(feature = "http1")]
                 if !versions.contains(&Version::HTTP_11) {
                     versions.push(Version::HTTP_11);
                 }
+                #[cfg(feature = "http2")]
                 if !versions.contains(&Version::HTTP_2) {
                     versions.push(Version::HTTP_2);
                 }
diff --git a/crates/core/src/conn/native_tls/listener.rs b/crates/core/src/conn/native_tls/listener.rs
index 0a99e1a69..691a22bea 100644
--- a/crates/core/src/conn/native_tls/listener.rs
+++ b/crates/core/src/conn/native_tls/listener.rs
@@ -86,9 +86,11 @@ where
             .iter()
             .map(|h| {
                 let mut versions = h.http_versions.clone();
+                #[cfg(feature = "http1")]
                 if !versions.contains(&Version::HTTP_11) {
                     versions.push(Version::HTTP_11);
                 }
+                #[cfg(feature = "http2")]
                 if !versions.contains(&Version::HTTP_2) {
                     versions.push(Version::HTTP_2);
                 }
diff --git a/crates/core/src/conn/openssl/listener.rs b/crates/core/src/conn/openssl/listener.rs
index f4ddf7432..2562be5bd 100644
--- a/crates/core/src/conn/openssl/listener.rs
+++ b/crates/core/src/conn/openssl/listener.rs
@@ -76,9 +76,11 @@ where
             .iter()
             .map(|h| {
                 let mut versions = h.http_versions.clone();
+                #[cfg(feature = "http1")]
                 if !versions.contains(&Version::HTTP_11) {
                     versions.push(Version::HTTP_11);
                 }
+                #[cfg(feature = "http2")]
                 if !versions.contains(&Version::HTTP_2) {
                     versions.push(Version::HTTP_2);
                 }
diff --git a/crates/core/src/conn/rustls/listener.rs b/crates/core/src/conn/rustls/listener.rs
index cff92e3d3..dce1b7b86 100644
--- a/crates/core/src/conn/rustls/listener.rs
+++ b/crates/core/src/conn/rustls/listener.rs
@@ -80,9 +80,11 @@ where
             .iter()
             .map(|h| {
                 let mut versions = h.http_versions.clone();
+                #[cfg(feature = "http1")]
                 if !versions.contains(&Version::HTTP_11) {
                     versions.push(Version::HTTP_11);
                 }
+                #[cfg(feature = "http2")]
                 if !versions.contains(&Version::HTTP_2) {
                     versions.push(Version::HTTP_2);
                 }