diff --git a/loopy/transform/fusion.py b/loopy/transform/fusion.py
index 6058b78d08b8ecab148252acbc86c5b3e0e4325c..bf435d3fe08d022790bf31a4d583d4923f0bfeff 100644
--- a/loopy/transform/fusion.py
+++ b/loopy/transform/fusion.py
@@ -210,11 +210,9 @@ def _fuse_two_kernels(knla, knlb):
 
     from pymbolic.imperative.transform import \
             fuse_instruction_streams_with_unique_ids
-    new_instructions = fuse_instruction_streams_with_unique_ids(
+    new_instructions, _ = fuse_instruction_streams_with_unique_ids(
             knla.instructions, knlb.instructions)
 
-    # }}}
-
     # {{{ fuse assumptions
 
     assump_a = knla.assumptions