1 files changed, 1 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 0913a2f41..b490b69f1 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -5835,7 +5835,7 @@ parse_sub_pattern(char *arg, int inquotes)
                         arg++; /* skip both \\, not just first one */
                 arg++;
         }
-        *idx++ = c;
+        *idx = c; /* NUL */
 
         return repl;
 }