diff --git a/nano/core_test/object_stream.cpp b/nano/core_test/object_stream.cpp
index 59c09db3bc..ead8bad719 100644
--- a/nano/core_test/object_stream.cpp
+++ b/nano/core_test/object_stream.cpp
@@ -212,10 +212,10 @@ TEST (object_stream, object_writer_basic)
 
 	auto expected = trim (R"(
 object_field: {
-	field1: "value1",
-	field2: "value2",
-	field3: true,
-	field4: 1234
+   field1: "value1",
+   field2: "value2",
+   field3: true,
+   field4: 1234
 }
 )");
 
@@ -243,15 +243,15 @@ TEST (object_stream, object_writer_nested)
 
 	auto expected = trim (R"(
 object_field: {
-	field1: "value1",
-	nested_object: {
-		nested_field1: "nested_value1",
-		nested_field2: false,
-		nested_field3: -1234
-	},
-	field2: "value2",
-	field3: true,
-	field4: 1234
+   field1: "value1",
+   nested_object: {
+      nested_field1: "nested_value1",
+      nested_field2: false,
+      nested_field3: -1234
+   },
+   field2: "value2",
+   field3: true,
+   field4: 1234
 }
 )");
 
@@ -269,9 +269,9 @@ TEST (object_stream, array_writer_basic)
 
 	auto expected = trim (R"(
 array_field: [
-	0,
-	1,
-	2
+   0,
+   1,
+   2
 ]
 )");
 
@@ -304,8 +304,8 @@ TEST (object_stream, object_basic)
 
 	auto expected = trim (R"(
 test_object: {
-	uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-	block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+   block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
 }
 )");
 
@@ -328,18 +328,18 @@ TEST (object_stream, array_writer_objects)
 
 	auto expected = trim (R"(
 array_field: [
-	{
-		uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-		block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
-	},
-	{
-		uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-		block_hash: "0000000000000000000000000000000000000000000000000000000000000001"
-	},
-	{
-		uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-		block_hash: "0000000000000000000000000000000000000000000000000000000000000002"
-	}
+   {
+      uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+      block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   },
+   {
+      uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+      block_hash: "0000000000000000000000000000000000000000000000000000000000000001"
+   },
+   {
+      uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+      block_hash: "0000000000000000000000000000000000000000000000000000000000000002"
+   }
 ]
 )");
 
@@ -370,9 +370,9 @@ TEST (object_stream, object_array_basic)
 
 	auto expected = trim (R"(
 test_object_array: [
-	1,
-	2,
-	3
+   1,
+   2,
+   3
 ]
 )");
 
@@ -410,17 +410,17 @@ TEST (object_stream, object_nested)
 
 	auto expected = trim (R"(
 test_object: {
-	uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-	block_hash: "0000000000000000000000000000000000000000000000000000000000000000",
-	nested_object: {
-		uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-		block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
-	},
-	nested_array_object: [
-		1,
-		2,
-		3
-	]
+   uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+   block_hash: "0000000000000000000000000000000000000000000000000000000000000000",
+   nested_object: {
+      uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+      block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   },
+   nested_array_object: [
+      1,
+      2,
+      3
+   ]
 }
 )");
 
@@ -455,18 +455,18 @@ TEST (object_stream, builtin_array)
 
 	auto expected = trim (R"(
 array_field: [
-	{
-		hash: "0000000000000000000000000000000000000000000000000000000000000001",
-		value: 1
-	},
-	{
-		hash: "0000000000000000000000000000000000000000000000000000000000000002",
-		value: 2
-	},
-	{
-		hash: "0000000000000000000000000000000000000000000000000000000000000003",
-		value: 3
-	}
+   {
+      hash: "0000000000000000000000000000000000000000000000000000000000000001",
+      value: 1
+   },
+   {
+      hash: "0000000000000000000000000000000000000000000000000000000000000002",
+      value: 2
+   },
+   {
+      hash: "0000000000000000000000000000000000000000000000000000000000000003",
+      value: 3
+   }
 ]
 )");
 
@@ -501,8 +501,8 @@ TEST (object_stream, ostream_adapter)
 
 	auto expected = trim (R"(
 {
-	uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-	block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+   block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
 }
 )");
 
@@ -518,8 +518,8 @@ TEST (object_stream, fmt_adapter)
 
 	auto expected = trim (R"(
 {
-	uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-	block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+   block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
 }
 )");
 
@@ -536,8 +536,8 @@ TEST (object_stream, to_string)
 
 	auto expected = trim (R"(
 {
-	uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
-	block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
+   uint256_union_field: "0000000000000000000000000000000000000000000000000000000000000000",
+   block_hash: "0000000000000000000000000000000000000000000000000000000000000000"
 }
 )");
 
diff --git a/nano/lib/object_stream.hpp b/nano/lib/object_stream.hpp
index 02b20bf44b..40c638df91 100644
--- a/nano/lib/object_stream.hpp
+++ b/nano/lib/object_stream.hpp
@@ -37,7 +37,7 @@ struct object_stream_config
 	std::string false_value{ "false" };
 	std::string null_value{ "null" };
 
-	std::string indent{ "\t" };
+	std::string indent{ "   " };
 	std::string newline{ "\n" };
 
 	/** Number of decimal places to show for `float` and `double` */