1 files changed, 8 insertions, 2 deletions

diff --git a/plugins/check_nt.c b/plugins/check_nt.c
index f76a52a6..fa93fce7 100644
--- a/plugins/check_nt.c
+++ b/plugins/check_nt.c
@@ -356,7 +356,12 @@ int main(int argc, char **argv){
                         {
                                 /* Let's format the output string, finally... */
 
-                                asprintf (&output_message, "%s = %.2f %s", description, counter_value, counter_unit);
+                                        if (strstr(description, "%") == NULL) {
+                                                asprintf (&output_message, "%s = %.2f %s", description, counter_value, counter_unit);
+                                        } else {
+                                                /* has formatting, will segv if wrong */
+                                        asprintf (&output_message, description, counter_value);
+                                        }
                                 output_message = strcat (output_message, "|");
                                 output_message = strcat (output_message,
                                                         fperfdata (description, counter_value, counter_unit,
@@ -672,7 +677,8 @@ Windows NT/2000/XP/2003 server.\n\n"));
      Request a -l parameters with the following syntax:\n\
                  -l \"\\\\<performance object>\\\\counter\",\"<description>\n\
      The <description> parameter is optional and \n\
-     is given to a printf output command which require a float parameters.\n\
+     is given to a printf output command which requires a float parameter.\n\
+     If <description> does not include \"%%\", it is used as a label.\n\
      Some examples:\n\
        \"Paging file usage is %%.2f %%%%\"\n\
        \"%%.f %%%% paging file used.\"\n"));