diff --git a/libs/portaudio/src/common/pa_ringbuffer.c b/libs/portaudio/src/common/pa_ringbuffer.c
index 897862f432..c259e6bd56 100644
--- a/libs/portaudio/src/common/pa_ringbuffer.c
+++ b/libs/portaudio/src/common/pa_ringbuffer.c
@@ -85,7 +85,7 @@
 #      define PaUtil_FullMemoryBarrier()  asm volatile("sync":::"memory")
 #      define PaUtil_ReadMemoryBarrier()  asm volatile("sync":::"memory")
 #      define PaUtil_WriteMemoryBarrier() asm volatile("sync":::"memory")
-#   elif defined( __i386__ ) || defined( __i486__ ) || defined( __i586__ ) || defined( __i686__ )
+#   elif defined( __i386__ ) || defined( __i486__ ) || defined( __i586__ ) || defined( __i686__ ) || defined(__x86_64__)
 #      define PaUtil_FullMemoryBarrier()  asm volatile("mfence":::"memory")
 #      define PaUtil_ReadMemoryBarrier()  asm volatile("lfence":::"memory")
 #      define PaUtil_WriteMemoryBarrier() asm volatile("sfence":::"memory")
diff --git a/src/mod/endpoints/mod_portaudio/pa_ringbuffer.c b/src/mod/endpoints/mod_portaudio/pa_ringbuffer.c
index 6cfc7bb252..c6c41a5f6c 100644
--- a/src/mod/endpoints/mod_portaudio/pa_ringbuffer.c
+++ b/src/mod/endpoints/mod_portaudio/pa_ringbuffer.c
@@ -85,7 +85,7 @@
 #      define PaUtil_FullMemoryBarrier()  asm volatile("sync":::"memory")
 #      define PaUtil_ReadMemoryBarrier()  asm volatile("sync":::"memory")
 #      define PaUtil_WriteMemoryBarrier() asm volatile("sync":::"memory")
-#   elif defined( __i386__ ) || defined( __i486__ ) || defined( __i586__ ) || defined( __i686__ )
+#   elif defined( __i386__ ) || defined( __i486__ ) || defined( __i586__ ) || defined( __i686__ ) || defined(__x86_64__)
 #      define PaUtil_FullMemoryBarrier()  asm volatile("mfence":::"memory")
 #      define PaUtil_ReadMemoryBarrier()  asm volatile("lfence":::"memory")
 #      define PaUtil_WriteMemoryBarrier() asm volatile("sfence":::"memory")