diff --git a/android-ffmpeg/src/main/java/nl/bravobit/ffmpeg/Util.java b/android-ffmpeg/src/main/java/nl/bravobit/ffmpeg/Util.java
index 2f6a20d..742f8c5 100644
--- a/android-ffmpeg/src/main/java/nl/bravobit/ffmpeg/Util.java
+++ b/android-ffmpeg/src/main/java/nl/bravobit/ffmpeg/Util.java
@@ -21,7 +21,7 @@ static String convertInputStreamToString(InputStream inputStream) {
             String str;
             StringBuilder sb = new StringBuilder();
             while ((str = r.readLine()) != null) {
-                sb.append(str);
+                sb.append(str).append('\n');
             }
             return sb.toString();
         } catch (IOException e) {