diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex
index 182bd3d5e0..b16b16cb55 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex
@@ -27,15 +27,7 @@ defmodule EthereumJSONRPC.Geth do
   def fetch_internal_transactions(transactions_params, json_rpc_named_arguments) when is_list(transactions_params) do
     id_to_params = id_to_params(transactions_params)
 
-    debug_trace_transaction_timeout =
-      Application.get_env(:ethereum_jsonrpc, __MODULE__)[:debug_trace_transaction_timeout]
-
-    parsed_timeout = CommonHelper.parse_duration(debug_trace_transaction_timeout)
-
-    json_rpc_named_arguments_corrected_timeout =
-      json_rpc_named_arguments
-      |> put_in([:transport_options, :http_options, :timeout], parsed_timeout)
-      |> put_in([:transport_options, :http_options, :recv_timeout], parsed_timeout)
+    json_rpc_named_arguments_corrected_timeout = correct_timeouts(json_rpc_named_arguments)
 
     with {:ok, responses} <-
            id_to_params
@@ -49,6 +41,21 @@ defmodule EthereumJSONRPC.Geth do
     end
   end
 
+  defp correct_timeouts(json_rpc_named_arguments) do
+    debug_trace_transaction_timeout =
+      Application.get_env(:ethereum_jsonrpc, __MODULE__)[:debug_trace_transaction_timeout]
+
+    case CommonHelper.parse_duration(debug_trace_transaction_timeout) do
+      {:error, :invalid_format} ->
+        json_rpc_named_arguments
+
+      parsed_timeout ->
+        json_rpc_named_arguments
+        |> put_in([:transport_options, :http_options, :timeout], parsed_timeout)
+        |> put_in([:transport_options, :http_options, :recv_timeout], parsed_timeout)
+    end
+  end
+
   @doc """
   Fetches the first trace from the trace URL.
   """
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/common_helper.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/common_helper.ex
index 65f8a092e3..154edb78bd 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/common_helper.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/common_helper.ex
@@ -3,17 +3,17 @@ defmodule EthereumJSONRPC.Utility.CommonHelper do
     Common helper functions
   """
 
-  # converts duration like "5s", "2m" to milliseconds
-  @duration_regex ~r/^(\d+)([smh]{1})$/
+  # converts duration like "5s", "2m", "1h5m" to milliseconds
+  @duration_regex ~r/(\d+)([smhSMH]?)/
   def parse_duration(duration) do
-    case Regex.run(@duration_regex, duration) do
-      [_, number, granularity] ->
-        number
-        |> String.to_integer()
-        |> convert_to_ms(granularity)
-
-      _ ->
+    case Regex.scan(@duration_regex, duration) do
+      [] ->
         {:error, :invalid_format}
+
+      parts ->
+        Enum.reduce(parts, 0, fn [_, number, granularity], acc ->
+          acc + convert_to_ms(String.to_integer(number), String.downcase(granularity))
+        end)
     end
   end