1 files changed, 2 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java
index ec91db8b6c..2cb9f9cafc 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ObjcProtoLibraryRule.java
@@ -154,7 +154,8 @@ public class ObjcProtoLibraryRule implements RuleDefinition {
     return RuleDefinition.Metadata.builder()
         .name("objc_proto_library")
         .factoryClass(ObjcProtoLibrary.class)
-        .ancestors(BaseRuleClasses.RuleBase.class, ObjcRuleClasses.XcrunRule.class)
+        .ancestors(BaseRuleClasses.RuleBase.class, ObjcRuleClasses.LibtoolRule.class,
+            ObjcRuleClasses.XcrunRule.class)
         .build();
   }
 }