diff --git a/querydsl-mongodb/pom.xml b/querydsl-mongodb/pom.xml
index 8281ea11e..ea71088e5 100644
--- a/querydsl-mongodb/pom.xml
+++ b/querydsl-mongodb/pom.xml
@@ -30,7 +30,8 @@
     <dependency>
         <groupId>com.google.code.morphia</groupId>
         <artifactId>morphia</artifactId>
-        <version>${morphia.version}</version>
+        <version>${morphia.version}</version>
+        <optional>true</optional>
     </dependency>
     <!-- Optional Jars (for certain features) but required by maven for bulding. -->
     <dependency>