diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index 7f38db7058..4b66f436dd 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -1564,6 +1564,10 @@ static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
         sequence = 0;
     }
 
+    if (hls->flags & HLS_I_FRAMES_ONLY) {
+        hls->version = 4;
+    }
+
     if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
         hls->version = 6;
     }