1 files changed, 2 insertions, 2 deletions
diff --git a/src/google/protobuf/compiler/csharp/csharp_map_field.cc b/src/google/protobuf/compiler/csharp/csharp_map_field.cc
index d58514ce..125bdf1d 100644
--- a/src/google/protobuf/compiler/csharp/csharp_map_field.cc
+++ b/src/google/protobuf/compiler/csharp/csharp_map_field.cc
@@ -48,9 +48,9 @@ namespace compiler {
 namespace csharp {
 
 MapFieldGenerator::MapFieldGenerator(const FieldDescriptor* descriptor,
-                                     int fieldOrdinal,
+                                     int presenceIndex,
                                      const Options* options)
-    : FieldGeneratorBase(descriptor, fieldOrdinal, options) {
+    : FieldGeneratorBase(descriptor, presenceIndex, options) {
 }
 
 MapFieldGenerator::~MapFieldGenerator() {