diff --git a/runtime/near-test-contracts/estimator-contract/Cargo.toml b/runtime/near-test-contracts/estimator-contract/Cargo.toml
index 9addaf909bb..c516edcbc27 100644
--- a/runtime/near-test-contracts/estimator-contract/Cargo.toml
+++ b/runtime/near-test-contracts/estimator-contract/Cargo.toml
@@ -23,4 +23,5 @@ panic = "abort"
 members = []
 
 [features]
-nightly = []
+protocol_feature_ed25519_verify = []
+nightly = ["protocol_feature_ed25519_verify"]
diff --git a/runtime/near-test-contracts/estimator-contract/src/lib.rs b/runtime/near-test-contracts/estimator-contract/src/lib.rs
index 22f911ad5ee..4da5921f08d 100644
--- a/runtime/near-test-contracts/estimator-contract/src/lib.rs
+++ b/runtime/near-test-contracts/estimator-contract/src/lib.rs
@@ -54,7 +54,8 @@ extern "C" {
         malleability_flag: u64,
         register_id: u64,
     ) -> u64;
-    pub fn ed25519_verify(
+    #[cfg(feature = "protocol_feature_ed25519_verify")]
+    fn ed25519_verify(
         sig_len: u64,
         sig_ptr: u64,
         msg_len: u64,
@@ -480,6 +481,7 @@ pub unsafe fn ecrecover_10k() {
 // so we are okay overcharging it. // TODO: validate this
 // Compute ecrecover 10k times.
 #[no_mangle]
+#[cfg(feature = "protocol_feature_ed25519_verify")]
 pub unsafe fn ed25519_verify_10k() {
     let signature: [u8; 64] = [
         145, 193, 203, 18, 114, 227, 14, 117, 33, 213, 121, 66, 130, 14, 25, 4, 36, 120, 46, 142,