diff --git a/mesonbuild/mesonlib.py b/mesonbuild/mesonlib.py
index fbd732a5d..d97ebbe99 100644
--- a/mesonbuild/mesonlib.py
+++ b/mesonbuild/mesonlib.py
@@ -708,7 +708,8 @@ class OrderedSet(collections.MutableSet):
     def __repr__(self):
         # Don't print 'OrderedSet("")' for an empty set.
         if self.__container:
-            return 'OrderedSet("{}")'.format('", "'.join(self.__container.keys()))
+            return 'OrderedSet("{}")'.format(
+                '", "'.join(repr(e) for e in self.__container.keys()))
         return 'OrderedSet()'
 
     def add(self, value):