diff --git a/android/src/main/java/com/rnaudiotranscoder/RNAudioTranscoder.java b/android/src/main/java/com/rnaudiotranscoder/RNAudioTranscoder.java
index 8fa7030..26ba7fa 100644
--- a/android/src/main/java/com/rnaudiotranscoder/RNAudioTranscoder.java
+++ b/android/src/main/java/com/rnaudiotranscoder/RNAudioTranscoder.java
@@ -87,7 +87,10 @@ private final ReadableMap makeMessagePayload(final String message) {
 	}
 
 	private final String[] createFFmpegCommand(final String input, final String output) {
-		return String.format(COMMAND_FORMAT, input, output).split(" ");
+		String[] commandParts = COMMAND_FORMAT.split(" ");
+		commandParts[1] = input;
+		commandParts[6] = output;
+		return commandParts;
 	}
 
 	private final Optional<String> checkRequiredOptions(final ReadableMap options) {