diff --git a/.classpath b/.classpath
index 49767e5..13e21d2 100644
--- a/.classpath
+++ b/.classpath
@@ -1,8 +1,20 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="src" path="test"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
-	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
-	<classpathentry kind="output" path="bin"/>
-</classpath>
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry combineaccessrules="false" kind="src" path="/JWebAssembly-API"/>
+	<classpathentry kind="src" output="bin/main" path="src">
+		<attributes>
+			<attribute name="gradle_scope" value="main"/>
+			<attribute name="gradle_used_by_scope" value="main,test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="test">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin/default"/>
+</classpath>
diff --git a/build.gradle b/build.gradle
index ad790ae..4d1c0f6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,6 +6,8 @@ plugins {
 apply plugin: 'java-library'
 apply plugin: 'maven-publish'
 
+sourceCompatibility = 1.8
+
 group 'de.inetsoftware'
 archivesBaseName = 'jwebassembly-compiler'
 version = '0.3'