diff --git a/libretro-common/include/rthreads/rsemaphore.h b/libretro-common/include/rthreads/rsemaphore.h
index 9dbb82155b..dacd4b47e8 100644
--- a/libretro-common/include/rthreads/rsemaphore.h
+++ b/libretro-common/include/rthreads/rsemaphore.h
@@ -23,6 +23,10 @@
 #ifndef __LIBRETRO_SDK_SEMAPHORE_H
 #define __LIBRETRO_SDK_SEMAPHORE_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct ssem ssem_t;
 
 /**
@@ -41,4 +45,8 @@ void ssem_wait(ssem_t *semaphore);
 
 void ssem_signal(ssem_t *semaphore);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __LIBRETRO_SDK_SEMAPHORE_H */