diff --git a/build.gradle b/build.gradle
index a3b0bfc9..06a5551b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,6 +4,8 @@ import java.util.regex.*
 defaultTasks 'build'
 
 allprojects {
+  apply plugin: 'java'
+
   repositories {
     mavenLocal()
     mavenCentral()
@@ -141,7 +143,7 @@ ant.properties.'ci.build.num' = "${tagMatcher().find() ? tagMatcher()[0][2] : '9
   }
 }
 
-task build {
+build {
   dependsOn {
     [
       ':coderules-assemble',
@@ -150,10 +152,9 @@ task build {
       ':samples:fitch:fitch-assemble'
     ]
   }
-
 }
 
-task check {
+check {
   dependsOn {
     [
       ':samples:mpscore:mpscore-check',
diff --git a/samples/fitch/build.gradle b/samples/fitch/build.gradle
index 92763806..1b6df318 100644
--- a/samples/fitch/build.gradle
+++ b/samples/fitch/build.gradle
@@ -40,7 +40,13 @@ ant.importBuild('build.xml') {antTarget ->
   }
 }
 
-task check {
+build {
+  dependsOn {
+    'fitch-assemble'
+  }
+}
+
+check {
   dependsOn {
     'fitch-check'
   }
diff --git a/samples/lambdacalc/build.gradle b/samples/lambdacalc/build.gradle
index 981ddcc5..186d19f6 100644
--- a/samples/lambdacalc/build.gradle
+++ b/samples/lambdacalc/build.gradle
@@ -40,7 +40,13 @@ ant.importBuild('build.xml') {antTarget ->
   }
 }
 
-task check {
+build {
+  dependsOn {
+    'lambdacalc-assemble'
+  }
+}
+
+check {
   dependsOn {
     'lambdacalc-check'
   }
diff --git a/samples/mpscore/build.gradle b/samples/mpscore/build.gradle
index f096e560..362692c3 100644
--- a/samples/mpscore/build.gradle
+++ b/samples/mpscore/build.gradle
@@ -40,7 +40,13 @@ ant.importBuild('build.xml') {antTarget ->
   }
 }
 
-task check {
+build {
+  dependsOn {
+    'mpscore-assemble'
+  }
+}
+
+check {
   dependsOn {
     'mpscore-check'
   }