diff --git a/ios/TextToSpeech/TextToSpeech.m b/ios/TextToSpeech/TextToSpeech.m
index 1e769cc..c7bdd24 100644
--- a/ios/TextToSpeech/TextToSpeech.m
+++ b/ios/TextToSpeech/TextToSpeech.m
@@ -94,7 +94,7 @@ + (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;
 
@@ -109,7 +109,7 @@ + (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;
 
@@ -132,7 +132,7 @@ + (BOOL)requiresMainQueueSetup
 }
 
 
-RCT_EXPORT_METHOD(setDucking:(BOOL *)ducking
+RCT_EXPORT_METHOD(setDucking:(BOOL)ducking
                   resolve:(RCTPromiseResolveBlock)resolve
                   reject:(__unused RCTPromiseRejectBlock)reject)
 {