diff --git a/app/Services/HashidService.php b/app/Services/HashidService.php
index d23c5c52d..81c15c24a 100644
--- a/app/Services/HashidService.php
+++ b/app/Services/HashidService.php
@@ -21,7 +21,7 @@ class HashidService {
 			$shortcode = '';
 			while($id) {
 				$id = ($id - ($r = $id % $base)) / $base;
-				$shortcode = $cmap{$r} . $shortcode;
+				$shortcode = $cmap[$r] . $shortcode;
 			};
 			return $shortcode;
 		});
@@ -47,4 +47,4 @@ class HashidService {
 		return $id;
 	}
 
-}
\ No newline at end of file
+}