diff --git a/sumpy/p2p.py b/sumpy/p2p.py
index c0542c62d06c51b251edc82436246f5412ae6b5e..c18b6c54e0731494ecb3c1c0c0fcf9707087412e 100644
--- a/sumpy/p2p.py
+++ b/sumpy/p2p.py
@@ -210,7 +210,7 @@ class P2P(SingleSrcTgtListP2PBase):
     def get_result_store_instructions(self):
         return ["""
                 result[{i}, itgt] = knl_{i}_scaling \
-                    * simul_reduce(sum, isrc, pair_result_{i}) {inames=itgt}
+                    * simul_reduce(sum, isrc, pair_result_{i}) {{inames=itgt}}
                 """.format(i=iknl)
                 for iknl in range(len(self.kernels))]