diff --git a/jdk/make/lib/SoundLibraries.gmk b/jdk/make/lib/SoundLibraries.gmk
index 07bd1f28637..5eb2976ef3f 100644
--- a/jdk/make/lib/SoundLibraries.gmk
+++ b/jdk/make/lib/SoundLibraries.gmk
@@ -111,10 +111,6 @@ ifeq ($(OPENJDK_TARGET_OS), solaris)
   LIBJSOUND_SRC_FILES += $(LIBJSOUND_DAUDIOFILES)
 endif # OPENJDK_TARGET_OS solaris
 
-
-  ifeq ($(OPENJDK_TARGET_CPU), aarch64)
-       LIBJSOUND_CFLAGS += -DX_ARCH=X_AARCH64
-  endif
 LIBJSOUND_CFLAGS += -DEXTRA_SOUND_JNI_LIBS='"$(EXTRA_SOUND_JNI_LIBS)"'
 
 $(eval $(call SetupNativeCompilation,BUILD_LIBJSOUND, \
diff --git a/jdk/src/java.desktop/share/native/libjsound/SoundDefs.h b/jdk/src/java.desktop/share/native/libjsound/SoundDefs.h
index b5cef308e40..ab4c1fa9dfb 100644
--- a/jdk/src/java.desktop/share/native/libjsound/SoundDefs.h
+++ b/jdk/src/java.desktop/share/native/libjsound/SoundDefs.h
@@ -34,7 +34,6 @@
 #define X_BSD           4
 #define X_MACOSX        5
 
-#define X_AARCH64       9
 // **********************************
 // Make sure you set X_PLATFORM defines correctly.
 // Everything depends upon this flag being setup correctly.