1 files changed, 11 insertions, 0 deletions
diff --git a/upb/pb/decoder.c b/upb/pb/decoder.c
index 182ecc9..79142bf 100644
--- a/upb/pb/decoder.c
+++ b/upb/pb/decoder.c
@@ -543,6 +543,9 @@ UPB_NOINLINE int32_t upb_pbdecoder_checktag_slow(upb_pbdecoder *d,
 
 int32_t upb_pbdecoder_skipunknown(upb_pbdecoder *d, int32_t fieldnum,
                                   uint8_t wire_type) {
+  upb_addunknown_handlerfunc *addunknown;
+  const void* hd;
+
   if (fieldnum >= 0)
     goto have_tag;
 
@@ -596,6 +599,14 @@ have_tag:
     }
 
     if (d->top->groupnum >= 0) {
+      addunknown = (upb_addunknown_handlerfunc *)upb_handlers_gethandler(
+          (d->top->sink).handlers, UPB_UNKNOWN_SELECTOR);
+      if (addunknown != NULL) {
+        hd = upb_handlers_gethandlerdata((d->top->sink).handlers,
+                                         UPB_UNKNOWN_SELECTOR);
+        addunknown((d->top->sink).closure, hd, d->checkpoint,
+                   d->ptr - d->checkpoint);
+      }
       return DECODE_OK;
     }