diff --git a/ios/RCTWebRTC/WebRTCModule+RTCMediaStream.m b/ios/RCTWebRTC/WebRTCModule+RTCMediaStream.m
index 772657307..31c0aae68 100644
--- a/ios/RCTWebRTC/WebRTCModule+RTCMediaStream.m
+++ b/ios/RCTWebRTC/WebRTCModule+RTCMediaStream.m
@@ -60,7 +60,7 @@ + (NSDictionary *)commonOptionalConstraints {
 #pragma mark - getUserMedia
 
 - (NSString *)convertBoolToString:(id)value {
-    return value ? @"true" : @"false";
+    return [value boolValue] ? @"true" : @"false";
 }
 
 /**