diff --git a/src/modules/mavlink/mavlink_ftp.cpp b/src/modules/mavlink/mavlink_ftp.cpp
index 73d67033e5..f990a93fea 100644
--- a/src/modules/mavlink/mavlink_ftp.cpp
+++ b/src/modules/mavlink/mavlink_ftp.cpp
@@ -165,7 +165,7 @@ MavlinkFTP::_process_request(
 	// basic sanity checks; must validate length before use
 	if (payload->size > kMaxDataLength) {
 		errorCode = kErrInvalidDataSize;
-		PX4_DEBUG("invalid data size");
+		PX4_WARN("invalid data size");
 		goto out;
 	}
 
@@ -517,7 +517,7 @@ MavlinkFTP::_workOpen(PayloadHeader *payload, int oflag)
 		// fail only if requested open for read
 		if (oflag & O_RDONLY) {
 			_our_errno = errno;
-			PX4_DEBUG("stat failed read: %s", strerror(_our_errno));
+			PX4_ERR("stat failed read: %s", strerror(_our_errno));
 			return kErrFailErrno;
 
 		} else {
@@ -533,7 +533,7 @@ MavlinkFTP::_workOpen(PayloadHeader *payload, int oflag)
 
 	if (fd < 0) {
 		_our_errno = errno;
-		PX4_DEBUG("open failed: %s", strerror(_our_errno));
+		PX4_ERR("open failed: %s", strerror(_our_errno));
 		return kErrFailErrno;
 	}
 
@@ -1074,7 +1074,7 @@ void MavlinkFTP::send()
 		if (error_code == kErrNone) {
 			if (lseek(_session_info.fd, payload->offset, SEEK_SET) < 0) {
 				error_code = kErrFailErrno;
-				PX4_DEBUG("stream download: seek fail");
+				PX4_WARN("stream download: seek fail");
 			}
 		}
 
@@ -1084,7 +1084,7 @@ void MavlinkFTP::send()
 			if (bytes_read < 0) {
 				// Negative return indicates error other than eof
 				error_code = kErrFailErrno;
-				PX4_DEBUG("stream download: read fail");
+				PX4_WARN("stream download: read fail");
 
 			} else {
 				payload->size = bytes_read;