diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 7019daf9b..15b53985a 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -772,18 +772,18 @@ func (api *ConsensusAPI) GetPayloadBodiesByHashV1(hashes []common.Hash) []*engin
 
 // GetPayloadBodiesByRangeV1 implements engine_getPayloadBodiesByRangeV1 which allows for retrieval of a range
 // of block bodies by the engine api.
-func (api *ConsensusAPI) GetPayloadBodiesByRangeV1(start, count uint64) ([]*engine.ExecutionPayloadBodyV1, error) {
+func (api *ConsensusAPI) GetPayloadBodiesByRangeV1(start, count hexutil.Uint64) ([]*engine.ExecutionPayloadBodyV1, error) {
 	if start == 0 || count == 0 || count > 1024 {
 		return nil, engine.InvalidParams.With(fmt.Errorf("invalid start or count, start: %v count: %v", start, count))
 	}
 	// limit count up until current
 	current := api.eth.BlockChain().CurrentBlock().NumberU64()
-	end := start + count
-	if end > current {
-		end = current
+	last := uint64(start) + uint64(count) - 1
+	if last > current {
+		last = current
 	}
-	var bodies []*engine.ExecutionPayloadBodyV1
-	for i := start; i < end; i++ {
+	bodies := make([]*engine.ExecutionPayloadBodyV1, 0, uint64(count))
+	for i := uint64(start); i <= last; i++ {
 		block := api.eth.BlockChain().GetBlockByNumber(i)
 		bodies = append(bodies, getBody(block))
 	}
diff --git a/eth/catalyst/api_test.go b/eth/catalyst/api_test.go
index 96613ac16..f7881415a 100644
--- a/eth/catalyst/api_test.go
+++ b/eth/catalyst/api_test.go
@@ -1311,9 +1311,14 @@ func TestGetBlockBodiesByRange(t *testing.T) {
 
 	tests := []struct {
 		results []*types.Body
-		start   uint64
-		count   uint64
+		start   hexutil.Uint64
+		count   hexutil.Uint64
 	}{
+		{
+			results: []*types.Body{blocks[9].Body()},
+			start:   10,
+			count:   1,
+		},
 		// Genesis
 		{
 			results: []*types.Body{blocks[0].Body()},
@@ -1334,14 +1339,25 @@ func TestGetBlockBodiesByRange(t *testing.T) {
 		},
 		// unavailable block
 		{
-			results: []*types.Body{blocks[18].Body()},
+			results: []*types.Body{blocks[18].Body(), blocks[19].Body()},
 			start:   19,
 			count:   3,
 		},
-		// after range
+		// unavailable block
+		{
+			results: []*types.Body{blocks[19].Body()},
+			start:   20,
+			count:   2,
+		},
+		{
+			results: []*types.Body{blocks[19].Body()},
+			start:   20,
+			count:   1,
+		},
+		// whole range unavailable
 		{
 			results: make([]*types.Body, 0),
-			start:   20,
+			start:   22,
 			count:   2,
 		},
 	}
@@ -1354,11 +1370,11 @@ func TestGetBlockBodiesByRange(t *testing.T) {
 		if len(result) == len(test.results) {
 			for i, r := range result {
 				if !equalBody(test.results[i], r) {
-					t.Fatalf("test %v: invalid response: expected %+v got %+v", k, test.results[i], r)
+					t.Fatalf("test %d: invalid response: expected \n%+v\ngot\n%+v", k, test.results[i], r)
 				}
 			}
 		} else {
-			t.Fatalf("invalid length want %v got %v", len(test.results), len(result))
+			t.Fatalf("test %d: invalid length want %v got %v", k, len(test.results), len(result))
 		}
 	}
 }
@@ -1369,8 +1385,8 @@ func TestGetBlockBodiesByRangeInvalidParams(t *testing.T) {
 	defer node.Close()
 
 	tests := []struct {
-		start uint64
-		count uint64
+		start hexutil.Uint64
+		count hexutil.Uint64
 	}{
 		// Genesis
 		{