diff --git a/src/FunctionFlags.php b/src/FunctionFlags.php
index 137c3aa..dc61644 100644
--- a/src/FunctionFlags.php
+++ b/src/FunctionFlags.php
@@ -1,5 +1,7 @@
 <?php
 
+		namespace FunctionFlags;
+
     class FunctionFlags {
         // Limit value for debug_backtrace()
         private static $trace_limit = 5;
@@ -53,4 +55,4 @@
             $flags = FunctionFlags::get_flags_from_caller();
             return $flags ? $flags & $flag : null;
         }
-    }
\ No newline at end of file
+    }