diff --git a/libpldmresponder/test/bios_jsons/bios_attrs.json b/libpldmresponder/test/bios_jsons/bios_attrs.json
index f02b788..0a4dd69 100644
--- a/libpldmresponder/test/bios_jsons/bios_attrs.json
+++ b/libpldmresponder/test/bios_jsons/bios_attrs.json
@@ -105,7 +105,6 @@
             "string_type": "ASCII",
             "minimum_string_length": 1,
             "maximum_string_length": 100,
-            "default_string_length": 3,
             "default_string": "abc",
             "readOnly": false,
             "helpText": "str_example1 HelpText",
@@ -123,7 +122,6 @@
             "string_type": "Hex",
             "minimum_string_length": 0,
             "maximum_string_length": 100,
-            "default_string_length": 0,
             "default_string": "",
             "readOnly": false,
             "helpText": "str_example2 HelpText",
@@ -141,7 +139,6 @@
             "string_type": "Unknown",
             "minimum_string_length": 1,
             "maximum_string_length": 100,
-            "default_string_length": 2,
             "default_string": "ef",
             "readOnly": true,
             "helpText": "str_example3 HelpText",
diff --git a/libpldmresponder/test/libpldmresponder_bios_config_test.cpp b/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
index 6e7c57a..5c0e779 100644
--- a/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
+++ b/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
@@ -153,11 +153,10 @@
                 EXPECT_EQ(
                     stringField.maxLength,
                     jsonEntry->at("maximum_string_length").get<uint16_t>());
-                EXPECT_EQ(
-                    stringField.defLength,
-                    jsonEntry->at("default_string_length").get<uint16_t>());
                 EXPECT_EQ(stringField.defString,
                           jsonEntry->at("default_string").get<std::string>());
+                EXPECT_EQ(stringField.defLength,
+                          (stringField.defString).length());
                 break;
             }
             case PLDM_BIOS_INTEGER:
diff --git a/libpldmresponder/test/libpldmresponder_bios_string_attribute_test.cpp b/libpldmresponder/test/libpldmresponder_bios_string_attribute_test.cpp
index c945a68..daeec13 100644
--- a/libpldmresponder/test/libpldmresponder_bios_string_attribute_test.cpp
+++ b/libpldmresponder/test/libpldmresponder_bios_string_attribute_test.cpp
@@ -33,7 +33,6 @@
             "string_type" : "ASCII",
             "minimum_string_length" : 1,
             "maximum_string_length" : 100,
-            "default_string_length" : 2,
             "default_string" : "ef",
             "readOnly" : true,
             "helpText" : "HelpText",
@@ -51,25 +50,11 @@
     EXPECT_EQ(stringInfo.defLength, 2);
     EXPECT_EQ(stringInfo.defString, "ef");
 
-    auto jsonStringReadOnlyError = R"(  {
-            "attribute_name" : "str_example3",
-            "string_type" : "ASCII",
-            "minimum_string_length" : 1,
-            "maximum_string_length" : 100,
-            "default_string" : "ef",
-            "helpText" : "HelpText",
-            "displayName" : "DisplayName"
-        })"_json; // missing default_string_length
-
-    EXPECT_THROW((BIOSStringAttribute{jsonStringReadOnlyError, nullptr}),
-                 Json::exception);
-
     auto jsonStringReadWrite = R"({
             "attribute_name" : "str_example1",
             "string_type" : "ASCII",
             "minimum_string_length" : 1,
             "maximum_string_length" : 100,
-            "default_string_length" : 3,
             "default_string" : "abc",
             "readOnly" : false,
             "helpText" : "HelpText",
@@ -97,7 +82,6 @@
             "string_type" : "ASCII",
             "minimum_string_length" : 1,
             "maximum_string_length" : 100,
-            "default_string_length" : 3,
             "default_string" : "abc",
             "readOnly" : true,
             "helpText" : "HelpText",
@@ -134,7 +118,6 @@
             "string_type" : "ASCII",
             "minimum_string_length" : 1,
             "maximum_string_length" : 100,
-            "default_string_length" : 3,
             "default_string" : "abc",
             "readOnly" : false,
             "helpText" : "HelpText",
@@ -185,7 +168,6 @@
             "string_type" : "ASCII",
             "minimum_string_length" : 1,
             "maximum_string_length" : 100,
-            "default_string_length" : 3,
             "default_string" : "abc",
             "readOnly" : false,
             "helpText" : "HelpText",
diff --git a/libpldmresponder/test/libpldmresponder_systemspecific_bios_test.cpp b/libpldmresponder/test/libpldmresponder_systemspecific_bios_test.cpp
index 6d80b9d..1b84204 100644
--- a/libpldmresponder/test/libpldmresponder_systemspecific_bios_test.cpp
+++ b/libpldmresponder/test/libpldmresponder_systemspecific_bios_test.cpp
@@ -160,11 +160,10 @@
                 EXPECT_EQ(
                     stringField.maxLength,
                     jsonEntry->at("maximum_string_length").get<uint16_t>());
-                EXPECT_EQ(
-                    stringField.defLength,
-                    jsonEntry->at("default_string_length").get<uint16_t>());
                 EXPECT_EQ(stringField.defString,
                           jsonEntry->at("default_string").get<std::string>());
+                EXPECT_EQ(stringField.defLength,
+                          (stringField.defString).length());
                 break;
             }
             case PLDM_BIOS_INTEGER:
diff --git a/libpldmresponder/test/system_type1/bios_jsons/bios_attrs.json b/libpldmresponder/test/system_type1/bios_jsons/bios_attrs.json
index fc70a5f..7a1f120 100644
--- a/libpldmresponder/test/system_type1/bios_jsons/bios_attrs.json
+++ b/libpldmresponder/test/system_type1/bios_jsons/bios_attrs.json
@@ -105,7 +105,6 @@
             "string_type": "ASCII",
             "minimum_string_length": 1,
             "maximum_string_length": 100,
-            "default_string_length": 3,
             "default_string": "abc",
             "readOnly": false,
             "helpText": "str_example1 HelpText",
@@ -123,7 +122,6 @@
             "string_type": "Hex",
             "minimum_string_length": 0,
             "maximum_string_length": 200,
-            "default_string_length": 0,
             "default_string": "",
             "readOnly": false,
             "helpText": "str_example2 HelpText",
@@ -141,7 +139,6 @@
             "string_type": "Unknown",
             "minimum_string_length": 1,
             "maximum_string_length": 100,
-            "default_string_length": 2,
             "default_string": "ef",
             "readOnly": true,
             "helpText": "str_example3 HelpText",