diff --git a/prog/sensors/chips.c b/prog/sensors/chips.c
index eaf4928b..36528c36 100644
--- a/prog/sensors/chips.c
+++ b/prog/sensors/chips.c
@@ -940,7 +940,7 @@ void print_w83781d(const sensors_chip_name *name)
   is82d = (!strcmp(name->prefix,"w83782d")) ||
           (!strcmp(name->prefix,"w83627hf")) ||
           (!strcmp(name->prefix,"as99127f"));
-  is83s = !strcmp(name->prefix,"w83782s");
+  is83s = !strcmp(name->prefix,"w83783s");
   if (!sensors_get_feature(*name,SENSORS_W83781D_ALARMS,&cur)) 
     alarms = cur + 0.5;
   else {