diff --git a/arch/sim/src/sim/posix/sim_host_v4l2.c b/arch/sim/src/sim/posix/sim_host_v4l2.c
index 27facdac6f..4094676e84 100644
--- a/arch/sim/src/sim/posix/sim_host_v4l2.c
+++ b/arch/sim/src/sim/posix/sim_host_v4l2.c
@@ -115,8 +115,8 @@ struct host_video_dev_s *host_video_init(const char *host_video_dev_path)
   return vdev;
 }
 
-int host_video_dq_buf(struct host_video_dev_s *vdev, uint8_t *addr,
-                      uint32_t size)
+int host_video_dqbuf(struct host_video_dev_s *vdev, uint8_t *addr,
+                     uint32_t size)
 {
   struct v4l2_buffer buf;
 
diff --git a/arch/sim/src/sim/sim_hostvideo.h b/arch/sim/src/sim/sim_hostvideo.h
index 8441431996..78bd595497 100644
--- a/arch/sim/src/sim/sim_hostvideo.h
+++ b/arch/sim/src/sim/sim_hostvideo.h
@@ -43,8 +43,8 @@ struct host_video_dev_s *host_video_init(const char *host_video_dev_path);
 int host_video_uninit(struct host_video_dev_s *vdev);
 int host_video_start_capture(struct host_video_dev_s *vdev);
 int host_video_stop_capture(struct host_video_dev_s *vdev);
-int host_video_dq_buf(struct host_video_dev_s *vdev, uint8_t *addr,
-                      uint32_t size);
+int host_video_dqbuf(struct host_video_dev_s *vdev, uint8_t *addr,
+                     uint32_t size);
 int host_video_set_fmt(struct host_video_dev_s *vdev,
                        uint16_t width, uint16_t height, uint32_t fmt,
                        uint32_t denom, uint32_t numer);
diff --git a/arch/sim/src/sim/sim_video.c b/arch/sim/src/sim/sim_video.c
index ad341f2587..9da591b3b6 100644
--- a/arch/sim/src/sim/sim_video.c
+++ b/arch/sim/src/sim/sim_video.c
@@ -307,9 +307,9 @@ void sim_video_loop(void)
 
   if (g_sim_video_priv.next_buf)
     {
-      ret = host_video_dq_buf(g_sim_video_priv.vdev,
-                              g_sim_video_priv.next_buf,
-                              g_sim_video_priv.buf_size);
+      ret = host_video_dqbuf(g_sim_video_priv.vdev,
+                             g_sim_video_priv.next_buf,
+                             g_sim_video_priv.buf_size);
       if (ret > 0)
         {
           g_sim_video_priv.capture_cb(0, ret);