diff --git a/DynmapCoreAPI/build.gradle b/DynmapCoreAPI/build.gradle
index 6003b05c..15771378 100644
--- a/DynmapCoreAPI/build.gradle
+++ b/DynmapCoreAPI/build.gradle
@@ -6,6 +6,7 @@ eclipse {
         name = "Dynmap(DynmapCoreAPI)"
     }
 }
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
 
 description = "DynmapCoreAPI"