diff --git a/build.gradle b/build.gradle
index 06e7a44..5ef925c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,6 +11,10 @@ buildscript {
 }
 
 allprojects {
+    tasks.withType(JavaCompile).configureEach {
+        options.incremental = true
+    }
+
   repositories {
     google()
     jcenter()
@@ -66,4 +70,4 @@ ext.deps = [
     espressoRules : 'com.android.support.test:rules:0.5',
     kotlin        : "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"
 
-]
+]
\ No newline at end of file