diff --git a/pbj-core/pbj-compiler/src/main/java/com/hedera/pbj/compiler/impl/generators/json/JsonCodecParseMethodGenerator.java b/pbj-core/pbj-compiler/src/main/java/com/hedera/pbj/compiler/impl/generators/json/JsonCodecParseMethodGenerator.java
index 58f71603..e18c03b1 100644
--- a/pbj-core/pbj-compiler/src/main/java/com/hedera/pbj/compiler/impl/generators/json/JsonCodecParseMethodGenerator.java
+++ b/pbj-core/pbj-compiler/src/main/java/com/hedera/pbj/compiler/impl/generators/json/JsonCodecParseMethodGenerator.java
@@ -77,7 +77,7 @@ static String generateParseObjectMethod(final String modelClassName, final List<
                         // -- EXTRACT VALUES FROM PARSE TREE ---------------------------------------------
 
                         for (JSONParser.PairContext kvPair : root.pair()) {
-                            switch (kvPair.STRING().getText()) {
+                            switch (toJsonFieldName(kvPair.STRING().getText())) {
                                 $caseStatements
                                 default: {
                                     if (strictMode) {
diff --git a/pbj-integration-tests/src/test/java/com/hedera/pbj/integration/test/JsonCodecTest.java b/pbj-integration-tests/src/test/java/com/hedera/pbj/integration/test/JsonCodecTest.java
index b9929e4e..72dd9eee 100644
--- a/pbj-integration-tests/src/test/java/com/hedera/pbj/integration/test/JsonCodecTest.java
+++ b/pbj-integration-tests/src/test/java/com/hedera/pbj/integration/test/JsonCodecTest.java
@@ -125,7 +125,7 @@ public void everythingTest() throws Exception {
     }
 
     @Test
-    public void NullStringTest() throws Exception {
+    public void nullStringTest() throws Exception {
         final String json = """
                 {
                   "bytesField": "308201a2300d06092a86",
@@ -136,4 +136,17 @@ public void NullStringTest() throws Exception {
         assertNotEquals(0, bytesAndString.bytesField().length());
         assertTrue(bytesAndString.stringField().isEmpty());
     }
+
+    @Test
+    public void snakeCaseStringTest() throws Exception {
+        final String json = """
+                {
+                  "bytesField": "308201a2300d06092a86",
+                  "string_field": "snake_case"
+                }
+                """;
+        MessageWithBytesAndString bytesAndString = MessageWithBytesAndString.JSON.parse(Bytes.wrap(json));
+        assertNotEquals(0, bytesAndString.bytesField().length());
+        assertEquals("snake_case", bytesAndString.stringField());
+    }
 }