diff --git a/src/ui/util.c b/src/ui/util.c
index 25d5c77..067503f 100644
--- a/src/ui/util.c
+++ b/src/ui/util.c
@@ -126,10 +126,8 @@ int isValidIPaddress(const char * ip){
 
      /* Compile regular expression */
     reti = regcomp(&regex, 
-        "^([0-9]|[1-9][0-9]|1([0-9][0-9])|2([0-4][0-9]|5[0-5]))."
-         "([0-9]|[1-9][0-9]|1([0-9][0-9])|2([0-4][0-9]|5[0-5]))."
-         "([0-9]|[1-9][0-9]|1([0-9][0-9])|2([0-4][0-9]|5[0-5]))."
-         "([0-9]|[1-9][0-9]|1([0-9][0-9])|2([0-4][0-9]|5[0-5]))$", REG_EXTENDED);
+        "^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$",
+        REG_EXTENDED);
     if (reti) {
         //printf( "Could not compile regex\n");
         return -1;