diff --git a/pkg/dart2bytecode/lib/bytecode_generator.dart b/pkg/dart2bytecode/lib/bytecode_generator.dart
index d22f0c99db7..7dcfe40134e 100644
--- a/pkg/dart2bytecode/lib/bytecode_generator.dart
+++ b/pkg/dart2bytecode/lib/bytecode_generator.dart
@@ -2865,9 +2865,7 @@ class BytecodeGenerator extends RecursiveVisitor {
     int position = TreeNode.noOffset;
     int endPosition = TreeNode.noOffset;
     if (options.emitSourcePositions) {
-      position = (node is ast.FunctionDeclaration)
-          ? node.fileOffset
-          : function.fileOffset;
+      position = node.fileOffset;
       endPosition = function.fileEndOffset;
       if (position != TreeNode.noOffset) {
         flags |= ClosureDeclaration.hasSourcePositionsFlag;