diff --git a/src/dump_header.cpp b/src/dump_header.cpp
index 8ee8f66a6..2a59e5bc8 100644
--- a/src/dump_header.cpp
+++ b/src/dump_header.cpp
@@ -101,7 +101,7 @@ void dump_header_syntax()
   std::cout << std::endl << "       -s, --summary : this option is used for LE-uSR data sets only. It will, additionally";
   std::cout << std::endl << "                     to the header information, print the summary file content.";
   std::cout << std::endl << "       -i, --instrument <inst> : where <inst> is the requested instrument:";
-  std::cout << std::endl << "                     lem (default) | gps | ltf | dolly | gpd | hifi | flame.";
+  std::cout << std::endl << "                     lem (default) | gps | ltf | dolly | gpd | hifi | flame | vms.";
   std::cout << std::endl << "       -c, --counts  : will show detector counts as well.";
   std::cout << std::endl << "       -h, --help    : will show this help";
   std::cout << std::endl << "       -v, --version : will show the current version.";
@@ -945,7 +945,7 @@ int main(int argc, char *argv[])
       }
       if (strcmp(argv[i+1], "lem") && strcmp(argv[i+1], "gps") && strcmp(argv[i+1], "ltf") &&
           strcmp(argv[i+1], "dolly") && strcmp(argv[i+1], "gpd") && strcmp(argv[i+1], "hifi") &&
-          strcmp(argv[i+1], "flame")) {
+          strcmp(argv[i+1], "flame") && strcmp(argv[i+1], "vms")) {
         std::cerr << std::endl << "**ERROR** found --instrument with unkown instrument name: '" << argv[i+1] << "'!" << std::endl;
         dump_header_syntax();
         return 1;