diff --git a/core/forkid/forkid.go b/core/forkid/forkid.go
index 7406a3f53a..113cc5362d 100644
--- a/core/forkid/forkid.go
+++ b/core/forkid/forkid.go
@@ -268,6 +268,11 @@ func gatherForks(config *params.ChainConfig, genesis uint64) ([]uint64, []uint64
 			}
 		}
 	}
+	// Berachain-specific: include nested Prague1 fork time in the fork id set
+	// so that clients using it (e.g. reth) compute the same fork checksum.
+	if config != nil && config.Berachain.Prague1.Time != nil {
+		forksByTime = append(forksByTime, *config.Berachain.Prague1.Time)
+	}
 	slices.Sort(forksByBlock)
 	slices.Sort(forksByTime)