diff --git a/jmh/pom.xml b/jmh/pom.xml
index 139f0b0..dce6aa5 100644
--- a/jmh/pom.xml
+++ b/jmh/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.0</version>
+        <version>1.2</version>
     </parent>
 
     <name>JsonToy-JMH</name>
     <artifactId>jsonthingy-jmhtests</artifactId>
-    <version>1.1</version>
+    <version>1.2</version>
     <packaging>jar</packaging>
 
     <properties>
@@ -19,7 +19,6 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
-
     <dependencies>
         <dependency>
             <groupId>${project.groupId}</groupId>
diff --git a/lib/pom.xml b/lib/pom.xml
index c8edd04..b61f595 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.0</version>
+        <version>1.2</version>
     </parent>
 
     <name>JsonToy</name>
     <artifactId>jsonthingy</artifactId>
-    <version>1.1</version>
+    <version>1.2</version>
     <packaging>jar</packaging>
 
     <properties>
diff --git a/lib/src/main/java/nl/sanderhautvast/json/ser/MapperFactory.java b/lib/src/main/java/nl/sanderhautvast/json/ser/MapperFactory.java
index f14655a..0b1ea9f 100644
--- a/lib/src/main/java/nl/sanderhautvast/json/ser/MapperFactory.java
+++ b/lib/src/main/java/nl/sanderhautvast/json/ser/MapperFactory.java
@@ -92,7 +92,7 @@ public class MapperFactory extends ClassVisitor {
         }
 
         getterInsnList.add(new VarInsnNode(ALOAD, 1));
-        getterInsnList.add(new LdcInsnNode("\"" + getterMethodName.substring(startIndex).toLowerCase() + "\":"));
+        getterInsnList.add(new LdcInsnNode("\"" + correctName(getterMethodName, startIndex) + "\":"));
         getterInsnList.add(new MethodInsnNode(INVOKEVIRTUAL, STRINGBUILDER, APPEND, APPEND_SIGNATURE));
         getterInsnList.add(new InsnNode(POP));
         getterInsnList.add(new VarInsnNode(ALOAD, 1));
@@ -101,6 +101,11 @@ public class MapperFactory extends ClassVisitor {
         getterInsnList.add(new MethodInsnNode(INVOKESTATIC, MAPPER, "json", "(Ljava/lang/StringBuilder;" + genericReturnType(returnType) + ")V"));
     }
 
+    private String correctName(String getterMethodName, int startIndex) {
+        String tmp = getterMethodName.substring(startIndex);
+        return tmp.substring(0, 1).toLowerCase() + tmp.substring(1);
+    }
+
     private static String genericReturnType(String returnType) {
         char firstChar = returnType.charAt(0);
         if (firstChar == 'L' || firstChar == '[') {
diff --git a/pom.xml b/pom.xml
index fad778f..73ef914 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <name>JsonToy</name>
     <groupId>nl.sander</groupId>
     <artifactId>jsonthingy-pom</artifactId>
-    <version>1.1</version>
+    <version>1.2</version>
     <packaging>pom</packaging>
 
     <modules>