diff --git a/pom.xml b/pom.xml
index f3f0639..469ae9f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,6 +88,11 @@
       <artifactId>jtransforms</artifactId>
       <version>2.4.0</version>
     </dependency>
+    <dependency>
+        <groupId>commons-cli</groupId>
+        <artifactId>commons-cli</artifactId>
+        <version>1.2</version>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/src/main/scala/com/sothr/imagetools/util/PropertiesService.scala b/src/main/scala/com/sothr/imagetools/util/PropertiesService.scala
index ad7baf3..4463bca 100644
--- a/src/main/scala/com/sothr/imagetools/util/PropertiesService.scala
+++ b/src/main/scala/com/sothr/imagetools/util/PropertiesService.scala
@@ -60,7 +60,7 @@ object PropertiesService extends Logging {
     val out:OutputStream = new FileOutputStream(location, false)
     val cleanProperties = getCleanProperties
     //insert special keys here
-    cleanProperties.setProperty("version.previous", version.toString())
+    cleanProperties.setProperty("version.previous", version.parsableToString())
     cleanProperties.storeToXML(out, "User Properties")
     out.flush()
     out.close()
diff --git a/src/main/scala/com/sothr/imagetools/util/Version.scala b/src/main/scala/com/sothr/imagetools/util/Version.scala
index e81864d..7b07742 100644
--- a/src/main/scala/com/sothr/imagetools/util/Version.scala
+++ b/src/main/scala/com/sothr/imagetools/util/Version.scala
@@ -52,8 +52,12 @@ class Version(val versionString:String) {
     }
   }
 
+  def parsableToString():String = {
+    s"$major.$minor.$patch-$buildTag-$buildNumber-$buildHash"
+  }
+
   override def toString():String = {
-    return s"$major.$minor.$patch-$buildTag build:$buildNumber code:$buildHash"
+    s"$major.$minor.$patch-$buildTag build:$buildNumber code:$buildHash"
   }
   
   override def hashCode(): Int = {