diff --git a/NEWS b/NEWS
index aec9b911..4108fa5d 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,7 @@ ps: fix crash related to realloc -- thanks David Houlder
 ps: man page more detailed                         #334682
 spelling fixes                       #300333 #334684 #334685
 top: crash on resize fixed -- thanks Michal Maruska   #320289
+vmstat: -p handles /dev/ and does not overflow  #319523 #330969
 
 procps-3.2.4 --> procps-3.2.5
 
diff --git a/vmstat.c b/vmstat.c
index 2bbe0241..b2f1a9e7 100644
--- a/vmstat.c
+++ b/vmstat.c
@@ -608,10 +608,12 @@ int main(int argc, char *argv[]) {
       case 'p':
         statMode |= PARTITIONSTAT;
 	if (argv[1]){
-	           ++argv;
-		   sprintf(partition, "%s", *argv);
-	 }else{fprintf(stderr, "-p requires an argument\n");
-               exit(EXIT_FAILURE);
+	  char *cp = *++argv;
+	  if(!memcmp(cp,"/dev/",5)) cp += 5;
+	  snprintf(partition, sizeof partition, "%s", cp);
+	}else{
+	  fprintf(stderr, "-p requires an argument\n");
+          exit(EXIT_FAILURE);
 	}
         break;
       case 'S':