diff --git a/ios/RNFetchBlob/RNFetchBlob.m b/ios/RNFetchBlob/RNFetchBlob.m
index 246d6707c..650d49b82 100644
--- a/ios/RNFetchBlob/RNFetchBlob.m
+++ b/ios/RNFetchBlob/RNFetchBlob.m
@@ -298,7 +298,7 @@ - (NSDictionary *)constantsToExport
     BOOL isDir = nil;
     exist = [fm fileExistsAtPath:path isDirectory:&isDir];
     if(exist == NO || isDir == NO) {
-        callback(@[[NSString stringWithFormat:@"failed to list path `%@` for it is not exist or it is not a folder", path]]);
+        callback(@[[NSString stringWithFormat:@"failed to list path `%@` because it does not exist or it is not a folder", path]]);
         return ;
     }
     NSError * error = nil;