1 files changed, 1 insertions, 1 deletions
diff --git a/gr-blocks/lib/magphase_to_complex_impl.h b/gr-blocks/lib/magphase_to_complex_impl.h
index d8a1181ec6..e7e8488510 100644
--- a/gr-blocks/lib/magphase_to_complex_impl.h
+++ b/gr-blocks/lib/magphase_to_complex_impl.h
@@ -30,7 +30,7 @@ namespace blocks {
 
 class BLOCKS_API magphase_to_complex_impl : public magphase_to_complex
 {
-    size_t d_vlen;
+    const size_t d_vlen;
 
 public:
     magphase_to_complex_impl(size_t vlen);