diff --git a/loopy/codegen/expression.py b/loopy/codegen/expression.py
index 56ed006c3eae4ee51c1c398ac4715049b2c78cc3..9e706e1ca8f6ccf9ad093416d47c4ae067a9f7e8 100644
--- a/loopy/codegen/expression.py
+++ b/loopy/codegen/expression.py
@@ -388,7 +388,7 @@ class LoopyCCodeMapper(CCodeMapper):
 
             if real_prd:
                 # elementwise semantics are correct
-                result = "%s * %s" % (real_prd, complex_prd)
+                result = "%s*%s" % (real_prd, complex_prd)
             else:
                 result = complex_prd