diff --git a/server/server.go b/server/server.go
index 2de01b5..fdc2cd6 100644
--- a/server/server.go
+++ b/server/server.go
@@ -9,7 +9,6 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
-	"strconv"
 	"time"
 
 	"github.com/golang-migrate/migrate/v4"
@@ -28,8 +27,8 @@ var funcMap = template.FuncMap{
 	"sub": sub,
 }
 
-func sub(a, b int64) string {
-	return strconv.FormatInt(a-b, 10)
+func sub(a, b int) int {
+	return a - b
 }
 
 var db *pgxpool.Pool
diff --git a/tmpl/index.tmpl b/tmpl/index.tmpl
index 58809db..506110f 100644
--- a/tmpl/index.tmpl
+++ b/tmpl/index.tmpl
@@ -4,13 +4,13 @@
     {{range $i, $c := .Counter}}
     <img class="counter-image" alt="{{$c}}" src="/static/counter/{{$c}}.gif">
         {{ $n := sub $l $i }}
-        {{ if $n eq 4 }}
+        {{ if eq $n 4 }}
             KB
-        {{ else if $n eq 8 }}
+        {{ else if eq $n 7 }}
             MB
-        {{ else if $n eq 12 }}
+        {{ else if eq $n 10 }}
             GB
-        {{ else if $n eq 16 }}
+        {{ else if eq $n 13 }}
             TB
         {{end}}
     {{end}}