diff --git a/client/consensus/grandpa/authorities_test.go b/client/consensus/grandpa/authorities_test.go
index d209805ec4..6312f2b2a5 100644
--- a/client/consensus/grandpa/authorities_test.go
+++ b/client/consensus/grandpa/authorities_test.go
@@ -175,11 +175,11 @@ func TestChangesIteratedInPreOrder(t *testing.T) {
 
 func TestApplyChange(t *testing.T) {
 	authorities := AuthoritySet[string, uint]{
-		currentAuthorities:     []Authority{},
-		setID:                  0,
-		pendingStandardChanges: NewChangeTree[string, uint](),
-		pendingForcedChanges:   []PendingChange[string, uint]{},
-		authoritySetChanges:    AuthoritySetChanges[uint]{},
+		CurrentAuthorities:     []Authority{},
+		SetID:                  0,
+		PendingStandardChanges: NewChangeTree[string, uint](),
+		PendingForcedChanges:   []PendingChange[string, uint]{},
+		AuthoritySetChanges:    AuthoritySetChanges[uint]{},
 	}
 
 	var setA []Authority
diff --git a/client/consensus/grandpa/aux_schema.go b/client/consensus/grandpa/aux_schema.go
index cc840e7031..5e0671cd98 100644
--- a/client/consensus/grandpa/aux_schema.go
+++ b/client/consensus/grandpa/aux_schema.go
@@ -90,7 +90,10 @@ func loadPersistent[H comparable, N constraints.Unsigned](store AuxStore, genesi
 		}, nil
 	} else {
 		logger.Info("👴 Loading GRANDPA authority set from genesis on what appears to be first startup")
-		genesisSet := NewGenesisAuthoritySet[H, N](genesisAuthorities)
+		genesisSet, err := NewGenesisAuthoritySet[H, N](genesisAuthorities)
+		if err != nil {
+			return nil, err
+		}
 
 		state := finalityGrandpa.NewRoundState(finalityGrandpa.HashNumber[H, N]{Hash: genesisHash, Number: genesisNumber})
 		base := state.PrevoteGHOST
diff --git a/client/consensus/grandpa/aux_schema_test.go b/client/consensus/grandpa/aux_schema_test.go
index 2dfee25355..f799b355b0 100644
--- a/client/consensus/grandpa/aux_schema_test.go
+++ b/client/consensus/grandpa/aux_schema_test.go
@@ -95,7 +95,8 @@ func TestLoadPersistentGenesis(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, persistentData)
 
-	genesisSet := NewGenesisAuthoritySet[string, uint](genesisAuthorities)
+	genesisSet, err := NewGenesisAuthoritySet[string, uint](genesisAuthorities)
+	require.NoError(t, err)
 
 	state := finalityGrandpa.NewRoundState(finalityGrandpa.HashNumber[string, uint]{Hash: genesisHash, Number: genesisNumber})
 	base := state.PrevoteGHOST
@@ -132,7 +133,8 @@ func TestLoadPersistentNotGenesis(t *testing.T) {
 	}}
 
 	// Auth set and Set state both written
-	genesisSet := NewGenesisAuthoritySet[string, uint](genesisAuthorities)
+	genesisSet, err := NewGenesisAuthoritySet[string, uint](genesisAuthorities)
+	require.NoError(t, err)
 
 	state := finalityGrandpa.NewRoundState(finalityGrandpa.HashNumber[string, uint]{Hash: genesisHash, Number: genesisNumber})
 	base := state.PrevoteGHOST