diff --git a/src/share/vm/prims/jvmtiRedefineClasses.cpp b/src/share/vm/prims/jvmtiRedefineClasses.cpp
index 4a57b20569b51dfb55f133d0b6d40e27dba9d848..1c3bbbfeed03e8e7a08227c6ef30fc219aa7da33 100644
--- a/src/share/vm/prims/jvmtiRedefineClasses.cpp
+++ b/src/share/vm/prims/jvmtiRedefineClasses.cpp
@@ -147,6 +147,9 @@ void VM_RedefineClasses::doit() {
     _scratch_classes[i] = NULL;
   }
 
+  // Disable any dependent concurrent compilations
+  SystemDictionary::notice_modification();
+
   // Set flag indicating that some invariants are no longer true.
   // See jvmtiExport.hpp for detailed explanation.
   JvmtiExport::set_has_redefined_a_class();