diff --git a/metadata/mb05/globalAttributes_MB05.yaml b/metadata/mb05/globalAttributes_MB05.yaml
index f3fd933..a612ad4 100644
--- a/metadata/mb05/globalAttributes_MB05.yaml
+++ b/metadata/mb05/globalAttributes_MB05.yaml
@@ -32,7 +32,7 @@ time_coverage_end: AUTOPOPULATE
 time_coverage_duration: P1D
 time_coverage_resolution: P60S
 platform: SanctSound MB05 mooring
-instrument: SoundTrap ST600 HF, SN 6999
+instrument: SoundTrap ST600 HF, SN 6715
 cdm_data_type: TimeSeries
 references: >-
   Computation of single-sided mean-square sound pressure spectral density with 1 Hz resolution