diff --git a/.gitignore b/.gitignore
index 1ab68134..51c61766 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ app.iws
 /ultimate/ideaSDK
 /ultimate/out
 /ultimate/tmp
+src/main/resources/data/models/
diff --git a/build.gradle b/build.gradle
index 49dea86f..9e276afe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,14 +11,18 @@ buildscript {
         classpath "com.google.protobuf:protobuf-gradle-plugin:0.8.1"
         classpath "org.junit.platform:junit-platform-gradle-plugin:1.0.0-RC2"
     }
+
+    // Extract models.
+    copy {
+        from tarTree(resources.gzip('src/main/resources/data/models.tar.gz'))
+        into file(projectDir.toString() + '/src/main/resources/data')
+    }
 }
 
 plugins {
     id 'de.fuerstenau.buildconfig' version '1.1.8'
 }
 
-
-
 apply plugin: "idea"
 apply plugin: "java"
 apply plugin: "kotlin"
@@ -114,6 +118,14 @@ sourceSets.main.java.srcDirs += 'build/generated/source/proto/main/java'
 sourceSets.test.java.srcDirs += 'src/test/kotlin'
 compileKotlin.dependsOn ':generateProto'
 
+sourceSets {
+    main {
+        resources {
+            exclude 'data/models.tar.gz'
+        }
+    }
+}
+
 // Include dependent libraries in archive.
 jar {
     manifest {
diff --git a/src/main/resources/data/models.zip b/src/main/resources/data/models.tar.gz
similarity index 73%
rename from src/main/resources/data/models.zip
rename to src/main/resources/data/models.tar.gz
index 231846d1..5527414b 100644
Binary files a/src/main/resources/data/models.zip and b/src/main/resources/data/models.tar.gz differ