diff --git a/mediapipe/tasks/ios/text/text_classifier/sources/MPPTextClassifier.h b/mediapipe/tasks/ios/text/text_classifier/sources/MPPTextClassifier.h
index 60aa94614..c98386ef5 100644
--- a/mediapipe/tasks/ios/text/text_classifier/sources/MPPTextClassifier.h
+++ b/mediapipe/tasks/ios/text/text_classifier/sources/MPPTextClassifier.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef MEDIAPIPE_TASKS_IOS_TEXT_TEXT_CLASSIFIER_SOURCES_MPP_TEXT_CLASSIFIER_H_
+#define MEDIAPIPE_TASKS_IOS_TEXT_TEXT_CLASSIFIER_SOURCES_MPP_TEXT_CLASSIFIER_H_
+
 #import <Foundation/Foundation.h>
 
 #import "mediapipe/tasks/ios/core/sources/MPPTaskOptions.h"
@@ -99,3 +102,5 @@ NS_SWIFT_NAME(TextClassifier)
 @end
 
 NS_ASSUME_NONNULL_END
+
+#endif // MEDIAPIPE_TASKS_IOS_TEXT_TEXT_CLASSIFIER_SOURCES_MPP_TEXT_CLASSIFIER_H_