diff --git a/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java b/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
index 367da89..3dd50b0 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
@@ -221,7 +221,7 @@ public final class FFMpegHelper {
     private static void addInternalImageSubtitle(List<String> command, SubtitleStream subtitleStream,
                                                  VideoStream videoStream) {
         command.add("-filter_complex");
-        String filter = String.format("[0:v:%d][0:%d]overlay", videoStream.getAbsoluteIndex(),
+        String filter = String.format("[0:v:%d][0:%d]overlay", videoStream.getRelativeIndex(),
                 subtitleStream.getAbsoluteIndex());
         command.add(filter);
     }