diff --git a/loopy/kernel/data.py b/loopy/kernel/data.py
index 55d3a15a8b9ba3f06366afc111d35b0f8e6be9f1..30f9f3a10b75d18ad3aa072ad4215d00d82bdd42 100644
--- a/loopy/kernel/data.py
+++ b/loopy/kernel/data.py
@@ -417,9 +417,7 @@ class SubstitutionRule(Record):
 # }}}
 
 
-# {{{ instruction
-
-# {{{ base class
+# {{{ instructions: base class
 
 class InstructionBase(Record):
     """A base class for all types of instruction that can occur in
@@ -786,6 +784,8 @@ def _get_assignee_and_index(expr):
         raise RuntimeError("invalid lvalue '%s'" % expr)
 
 
+# {{{ atomic ops
+
 class memory_ordering:
     """Ordering of atomic operations, defined as in C11 and OpenCL.
 
@@ -927,8 +927,10 @@ class AtomicUpdate(VarAtomicity):
                 memory_ordering.to_string(self.ordering),
                 memory_scope.to_string(self.scope))
 
+# }}}
+
 
-# {{{ assignment
+# {{{ instruction: assignment
 
 class Assignment(InstructionBase):
     """
@@ -1292,6 +1294,4 @@ class CInstruction(InstructionBase):
 
 # }}}
 
-# }}}
-
 # vim: foldmethod=marker