diff --git a/bookmarks.d/maritime.json b/bookmarks.d/maritime.json
index 4080bdfc..a790b000 100644
--- a/bookmarks.d/maritime.json
+++ b/bookmarks.d/maritime.json
@@ -86,7 +86,7 @@
     },
     {
         "name" : "DSC",
-        "frequency" : 156525000,
+        "frequency" : 156524000,
         "modulation" : "dsc"
     }
 ]
diff --git a/bookmarks.json b/bookmarks.json
index 5816fd75..80036bba 100644
--- a/bookmarks.json
+++ b/bookmarks.json
@@ -241,7 +241,7 @@
     },
     {
         "name" : "DSC",
-        "frequency" : 156525000,
+        "frequency" : 156524000,
         "modulation" : "dsc"
     },
     {
diff --git a/bookmarks.txt b/bookmarks.txt
index fae4b9ef..f3148f1d 100644
--- a/bookmarks.txt
+++ b/bookmarks.txt
@@ -66,7 +66,7 @@ DSC|||6311|DSC
 DSC|||8413.5|DSC
 DSC|||12576|DSC
 DSC|||16803.5|DSC
-DSC|||156525|DSC
+DSC|||156524|DSC
 
 #
 # NOAA weather broadcasts