1 files changed, 1 insertions, 0 deletions

diff --git a/src/lread.c b/src/lread.c
index 772a91581a6..1b945fcba5b 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -2189,6 +2189,7 @@ init_obarray ()
   Vpurify_flag = Qt;
 
   Qvariable_documentation = intern ("variable-documentation");
+  staticpro (&Qvariable_documentation);
 
   read_buffer_size = 100;
   read_buffer = (char *) malloc (read_buffer_size);