diff --git a/client_side_nav.php b/client_side_nav.php
index e0e8cb17..1955a70d 100644
--- a/client_side_nav.php
+++ b/client_side_nav.php
@@ -2,7 +2,7 @@
 <aside class="main-sidebar sidebar-dark-<?php echo nullable_htmlentities($config_theme); ?> d-print-none">
 
     <a class="brand-link pb-1 mt-1" href="clients.php">    
-        <p class="h5"><i class="nav-icon fas fa-arrow-left ml-3 mr-2"></i> Back | <strong><?php echo initials($client_name); ?></strong></p>
+        <p class="h5"><i class="nav-icon fas fa-arrow-left ml-3 mr-2"></i> Back | <strong><?php echo truncate($client_name,11); ?></strong></p>
     </a>
 
     <!-- Sidebar -->
diff --git a/functions.php b/functions.php
index 73c167bd..f1552bd3 100644
--- a/functions.php
+++ b/functions.php
@@ -192,7 +192,10 @@ function truncate($text, $chars) {
     }
     $text = $text." ";
     $text = substr($text, 0, $chars);
-    $text = substr($text, 0, strrpos($text, ' '));
+    $lastSpacePos = strrpos($text, ' ');
+    if ($lastSpacePos !== false) {
+        $text = substr($text, 0, $lastSpacePos);
+    }
     return $text."...";
 }