diff --git a/ashley/src/com/badlogic/ashley/core/Family.java b/ashley/src/com/badlogic/ashley/core/Family.java
index 4bbd417c..8bc62acd 100644
--- a/ashley/src/com/badlogic/ashley/core/Family.java
+++ b/ashley/src/com/badlogic/ashley/core/Family.java
@@ -76,7 +76,7 @@ public boolean matches (Entity entity) {
 	 * @return A Builder singleton instance to get a family
 	 */
 	@SafeVarargs
-	public static Builder all (Class<? extends Component>... componentTypes) {
+	public static final Builder all (Class<? extends Component>... componentTypes) {
 		return builder.reset().all(componentTypes);
 	}
 
@@ -85,7 +85,7 @@ public static Builder all (Class<? extends Component>... componentTypes) {
 	 * @return A Builder singleton instance to get a family
 	 */
 	@SafeVarargs
-	public static Builder one (Class<? extends Component>... componentTypes) {
+	public static final Builder one (Class<? extends Component>... componentTypes) {
 		return builder.reset().one(componentTypes);
 	}
 
@@ -94,7 +94,7 @@ public static Builder one (Class<? extends Component>... componentTypes) {
 	 * @return A Builder singleton instance to get a family
 	 */
 	@SafeVarargs
-	public static Builder exclude (Class<? extends Component>... componentTypes) {
+	public static final Builder exclude (Class<? extends Component>... componentTypes) {
 		return builder.reset().exclude(componentTypes);
 	}