1 files changed, 1 insertions, 1 deletions
diff --git a/src/reader.h b/src/reader.h
index a98d5ef8..0bb3454b 100644
--- a/src/reader.h
+++ b/src/reader.h
@@ -46,7 +46,7 @@ struct SerdReaderImpl {
   SerdSyntax      syntax;
   SerdReaderFlags flags;
   unsigned        next_id;
-  char*           bprefix;
+  char            bprefix[24];
   size_t          bprefix_len;
   bool            strict; ///< True iff strict parsing
   bool            seen_genid;