diff --git a/modules/swagger-codegen/src/main/resources/android-java/apiInvoker.mustache b/modules/swagger-codegen/src/main/resources/android-java/apiInvoker.mustache
index 5aabd2458e..ac24335df1 100644
--- a/modules/swagger-codegen/src/main/resources/android-java/apiInvoker.mustache
+++ b/modules/swagger-codegen/src/main/resources/android-java/apiInvoker.mustache
@@ -216,7 +216,7 @@ public class ApiInvoker {
       }
       else if(String.class.equals(cls)) {
         if(json != null && json.startsWith("\"") && json.endsWith("\"") && json.length() > 1)
-          return json.substring(1, json.length() - 2);
+          return json.substring(1, json.length() - 1);
         else
           return json;
       }
diff --git a/modules/swagger-codegen/src/main/resources/scala/apiInvoker.mustache b/modules/swagger-codegen/src/main/resources/scala/apiInvoker.mustache
index 9c2e9c073c..2300341d6d 100644
--- a/modules/swagger-codegen/src/main/resources/scala/apiInvoker.mustache
+++ b/modules/swagger-codegen/src/main/resources/scala/apiInvoker.mustache
@@ -59,7 +59,7 @@ class ApiInvoker(val mapper: ObjectMapper = ScalaJsonUtil.getJsonMapper,
     if (cls == classOf[String]) {
       json match {
         case s: String => {
-          if (s.startsWith("\"") && s.endsWith("\"") && s.length > 1) s.substring(1, s.length - 2)
+          if (s.startsWith("\"") && s.endsWith("\"") && s.length > 1) s.substring(1, s.length - 1)
           else s
         }
         case _ => null
diff --git a/samples/client/petstore/android-java/src/main/java/io/swagger/client/ApiInvoker.java b/samples/client/petstore/android-java/src/main/java/io/swagger/client/ApiInvoker.java
index 0ccc371395..eabb47e818 100644
--- a/samples/client/petstore/android-java/src/main/java/io/swagger/client/ApiInvoker.java
+++ b/samples/client/petstore/android-java/src/main/java/io/swagger/client/ApiInvoker.java
@@ -216,7 +216,7 @@ public class ApiInvoker {
       }
       else if(String.class.equals(cls)) {
         if(json != null && json.startsWith("\"") && json.endsWith("\"") && json.length() > 1)
-          return json.substring(1, json.length() - 2);
+          return json.substring(1, json.length() - 1);
         else
           return json;
       }
diff --git a/samples/client/petstore/scala/src/main/scala/io/swagger/client/ApiInvoker.scala b/samples/client/petstore/scala/src/main/scala/io/swagger/client/ApiInvoker.scala
index 1f9d3c012d..df067bdab8 100644
--- a/samples/client/petstore/scala/src/main/scala/io/swagger/client/ApiInvoker.scala
+++ b/samples/client/petstore/scala/src/main/scala/io/swagger/client/ApiInvoker.scala
@@ -59,7 +59,7 @@ class ApiInvoker(val mapper: ObjectMapper = ScalaJsonUtil.getJsonMapper,
     if (cls == classOf[String]) {
       json match {
         case s: String => {
-          if (s.startsWith("\"") && s.endsWith("\"") && s.length > 1) s.substring(1, s.length - 2)
+          if (s.startsWith("\"") && s.endsWith("\"") && s.length > 1) s.substring(1, s.length - 1)
           else s
         }
         case _ => null