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-rw-r--r--gr-blocks/lib/annotator_1to1_impl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/gr-blocks/lib/annotator_1to1_impl.h b/gr-blocks/lib/annotator_1to1_impl.h
index 446f2ec0c8..c87b6e5ef0 100644
--- a/gr-blocks/lib/annotator_1to1_impl.h
+++ b/gr-blocks/lib/annotator_1to1_impl.h
@@ -19,7 +19,7 @@ namespace blocks {
class annotator_1to1_impl : public annotator_1to1
{
private:
- uint64_t d_when;
+ const uint64_t d_when;
uint64_t d_tag_counter;
std::vector<tag_t> d_stored_tags;