diff --git a/Cargo.lock b/Cargo.lock
index 223214c53..938b47936 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2739,6 +2739,7 @@ dependencies = [
  "kaspa-consensus-notify",
  "kaspa-consensusmanager",
  "kaspa-core",
+ "kaspa-hashes",
  "kaspa-index-core",
  "kaspa-math",
  "kaspa-mining",
diff --git a/rpc/service/Cargo.toml b/rpc/service/Cargo.toml
index 3a66d6fb3..9cc925599 100644
--- a/rpc/service/Cargo.toml
+++ b/rpc/service/Cargo.toml
@@ -26,6 +26,7 @@ kaspa-math.workspace = true
 kaspa-utxoindex.workspace = true
 kaspa-wrpc-core.workspace = true
 kaspa-perf-monitor.workspace = true
+kaspa-hashes.workspace = true
 
 log.workspace = true
 async-trait.workspace = true
diff --git a/rpc/service/src/service.rs b/rpc/service/src/service.rs
index d38d2002b..7e7d6b5a6 100644
--- a/rpc/service/src/service.rs
+++ b/rpc/service/src/service.rs
@@ -556,12 +556,23 @@ impl RpcApi for RpcCoreService {
         if request.window_size as u64 > self.config.pruning_depth {
             return Err(RpcError::WindowSizeExceedingPruningDepth(request.window_size, self.config.pruning_depth));
         }
+
+        // In the previous golang implementation the convention for virtual was the following const.
+        // In the current implementation, consensus behaves the same when it gets a None instead.
+        const LEGACY_VIRTUAL: kaspa_hashes::Hash = kaspa_hashes::Hash::from_bytes([0xff; kaspa_hashes::HASH_SIZE]);
+        let mut start_hash = request.start_hash;
+        if let Some(start) = start_hash {
+            if start == LEGACY_VIRTUAL {
+                start_hash = None;
+            }
+        }
+
         Ok(EstimateNetworkHashesPerSecondResponse::new(
             self.consensus_manager
                 .consensus()
                 .session()
                 .await
-                .async_estimate_network_hashes_per_second(request.start_hash, request.window_size as usize)
+                .async_estimate_network_hashes_per_second(start_hash, request.window_size as usize)
                 .await?,
         ))
     }