diff --git a/include/fb.h b/include/fb.h
index 1bec36a..4c56886 100644
--- a/include/fb.h
+++ b/include/fb.h
@@ -25,7 +25,6 @@
 struct nvnc_fb {
 	int ref;
 	void* addr;
-	atomic_bool is_locked;
 	enum nvnc_fb_flags flags;
 	size_t size;
 	uint16_t width;
diff --git a/src/fb.c b/src/fb.c
index 82b42a0..9685ba0 100644
--- a/src/fb.c
+++ b/src/fb.c
@@ -56,19 +56,6 @@ struct nvnc_fb* nvnc_fb_new(uint16_t width, uint16_t height,
 	return fb;
 }
 
-EXPORT
-bool nvnc_fb_lock(struct nvnc_fb* fb)
-{
-	bool expected = false;
-	return atomic_compare_exchange_strong(&fb->is_locked, &expected, true);
-}
-
-EXPORT
-void nvnc_fb_unlock(struct nvnc_fb* fb)
-{
-	fb->is_locked = false;
-}
-
 EXPORT
 enum nvnc_fb_flags nvnc_fb_get_flags(const struct nvnc_fb* fb)
 {