diff --git a/src/hotspot/share/oops/trainingData.cpp b/src/hotspot/share/oops/trainingData.cpp
index 41fbc6de994..ca5883a19ca 100644
--- a/src/hotspot/share/oops/trainingData.cpp
+++ b/src/hotspot/share/oops/trainingData.cpp
@@ -328,7 +328,9 @@ void CompileTrainingData::notice_jit_observation(ciEnv* env, ciBaseObject* what)
         // This JIT task is (probably) requesting that ik be initialized,
         // so add him to my _init_deps list.
         TrainingDataLocker l;
-        add_init_dep(ktd);
+        if (l.can_add()) {
+          add_init_dep(ktd);
+        }
       }
     }
   }