1 files changed, 2 insertions, 2 deletions
diff --git a/gr-digital/lib/hdlc_deframer_bp_impl.h b/gr-digital/lib/hdlc_deframer_bp_impl.h
index 28b1fa896b..2c3013459d 100644
--- a/gr-digital/lib/hdlc_deframer_bp_impl.h
+++ b/gr-digital/lib/hdlc_deframer_bp_impl.h
@@ -19,8 +19,8 @@ namespace digital {
 class hdlc_deframer_bp_impl : public hdlc_deframer_bp
 {
 private:
-    size_t d_length_min;
-    size_t d_length_max;
+    const size_t d_length_min;
+    const size_t d_length_max;
     size_t d_ones = 0;
     size_t d_bytectr = 0;
     size_t d_bitctr = 0;