diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
index 833d7169eff..1a03605b8a8 100644
--- a/src/hotspot/share/runtime/arguments.cpp
+++ b/src/hotspot/share/runtime/arguments.cpp
@@ -563,6 +563,7 @@ static SpecialFlag const special_jvm_flags[] = {
 #ifdef AARCH64
   { "UseBarriersForVolatile",        JDK_Version::undefined(), JDK_Version::jdk(15), JDK_Version::jdk(16) },
 #endif
+  { "UseLWPSynchronization",         JDK_Version::undefined(), JDK_Version::jdk(15), JDK_Version::jdk(16) },
 
 #ifdef TEST_VERIFY_SPECIAL_JVM_FLAGS
   // These entries will generate build errors.  Their purpose is to test the macros.
diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
index 2da31a6f73f..782f83dbaea 100644
--- a/src/hotspot/share/runtime/globals.hpp
+++ b/src/hotspot/share/runtime/globals.hpp
@@ -683,10 +683,6 @@ const size_t minimumSymbolTableSize = 1024;
                "Disable the use of stack guard pages if the JVM is loaded " \
                "on the primordial process thread")                          \
                                                                             \
-  product(bool, UseLWPSynchronization, true,                                \
-          "Use LWP-based instead of libthread-based synchronization "       \
-          "(SPARC only)")                                                   \
-                                                                            \
   experimental(intx, MonitorUsedDeflationThreshold, 90,                     \
                 "Percentage of used monitors before triggering cleanup "    \
                 "safepoint which deflates monitors (0 is off). "            \