1 files changed, 4 insertions, 0 deletions
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index 42af5989a1..a53e8657cb 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -5675,6 +5675,10 @@ void ex_sign(exarg_T *eap)
 		}
 		else
 		{   // ... not currently in a window
+                    if (buf->b_fname == NULL) {
+                      EMSG(_("E934: Cannot jump to a buffer that does not have a name"));
+                      return;
+                    }
 		    char *cmd = xmalloc(STRLEN(buf->b_fname) + 25);
 		    sprintf(cmd, "e +%" PRId64 " %s",
                     (int64_t)lnum, buf->b_fname);