diff --git a/src/structure/components/com_sportsmanager/tools.php b/src/structure/components/com_sportsmanager/tools.php
index 189687f..4e5efd9 100644
--- a/src/structure/components/com_sportsmanager/tools.php
+++ b/src/structure/components/com_sportsmanager/tools.php
@@ -116,20 +116,19 @@ function setMinMemoryLimit($memDestSize) {
 }
 
 function getBytes($val) {
-	if (is_numeric($val)) {
 	$val = trim($val);
-		$last = strtolower($val[strlen($val) - 1]);
-		switch ($last) {
+    $numeric = substr($val, 0, strlen($val) -1);
+	$last = strtolower($val[strlen($val) - 1]);
+	switch($last) {
 		// The 'G' modifier is available since PHP 5.1.0
 		case 'g':
-		  $val *= 1024;
+		  $numeric *= 1024;
 		case 'm':
-		  $val *= 1024;
+		  $numeric *= 1024;
 		case 'k':
-		  $val *= 1024;
-	}
-	return $val;
+		  $numeric *= 1024;
 	}
+	return $numeric;
 }
 
 function encrypt($str, $key){