diff --git a/ios/TextToSpeech/TextToSpeech.m b/ios/TextToSpeech/TextToSpeech.m
index 1e769cc..cd2ba28 100644
--- a/ios/TextToSpeech/TextToSpeech.m
+++ b/ios/TextToSpeech/TextToSpeech.m
@@ -94,11 +94,11 @@ + (BOOL)requiresMainQueueSetup
     resolve([NSNumber numberWithUnsignedLong:utterance.hash]);
 }
 
-RCT_EXPORT_METHOD(stop:(BOOL *)onWordBoundary resolve:(RCTPromiseResolveBlock)resolve reject:(__unused RCTPromiseRejectBlock)reject)
+RCT_EXPORT_METHOD(stop:(BOOL)onWordBoundary resolve:(RCTPromiseResolveBlock)resolve reject:(__unused RCTPromiseRejectBlock)reject)
 {
     AVSpeechBoundary boundary;
 
-    if(onWordBoundary != NULL && onWordBoundary) {
+    if(onWordBoundary) {
         boundary = AVSpeechBoundaryWord;
     } else {
         boundary = AVSpeechBoundaryImmediate;
@@ -109,11 +109,11 @@ + (BOOL)requiresMainQueueSetup
     resolve([NSNumber numberWithBool:stopped]);
 }
 
-RCT_EXPORT_METHOD(pause:(BOOL *)onWordBoundary resolve:(RCTPromiseResolveBlock)resolve reject:(__unused RCTPromiseRejectBlock)reject)
+RCT_EXPORT_METHOD(pause:(BOOL)onWordBoundary resolve:(RCTPromiseResolveBlock)resolve reject:(__unused RCTPromiseRejectBlock)reject)
 {
     AVSpeechBoundary boundary;
 
-    if(onWordBoundary != NULL && onWordBoundary) {
+    if(onWordBoundary) {
         boundary = AVSpeechBoundaryWord;
     } else {
         boundary = AVSpeechBoundaryImmediate;