diff --git a/src/hammer.c b/src/hammer.c
index 66a64957811d69ad144c072cd4dc0432c93f1c78..c257e07278dc58e2c0d4fe3a978a17e8b8a5debf 100644
--- a/src/hammer.c
+++ b/src/hammer.c
@@ -208,7 +208,14 @@ HParseResult* h_do_parse(const HParser* parser, HParseState *state) {
       setupLR(parser, state, m->left);
       return m->left->seed; // BUG: this might not be correct
     } else {
-      return m->right;
+      HParseResult *res = m->right;
+
+      // skip over the previously-parsed input
+      long long offs = res->bit_length + state->input_stream.bit_offset;
+      state->input_stream.index += offs >> 3;
+      state->input_stream.bit_offset = offs & 7;
+
+      return res;
     }
   }
 }