diff --git a/examples/objective-c/hello_world/ViewController.m b/examples/objective-c/hello_world/ViewController.m
index 69e16bc5d4..d01dd8a750 100644
--- a/examples/objective-c/hello_world/ViewController.m
+++ b/examples/objective-c/hello_world/ViewController.m
@@ -90,9 +90,9 @@ - (void)performRequest {
     NSString *message = [NSString stringWithFormat:@"received headers with status %i", statusCode];
 
     NSMutableString *headerMessage = [NSMutableString new];
-    for (NSString *name in headers.caseSensitiveHeaders()) {
+    for (NSString *name in headers.caseSensitiveHeaders) {
       if ([self.filteredHeaders containsObject:name]) {
-        NSArray<NSString *> *values = headers.caseSensitiveHeaders()[name];
+        NSArray<NSString *> *values = headers.caseSensitiveHeaders[name];
         NSString *joined = [values componentsJoinedByString:@", "];
         NSString *pair = [NSString stringWithFormat:@"%@: %@\n", name, joined];
         [headerMessage appendString:pair];