1 files changed, 6 insertions, 4 deletions

diff --git a/lisp/progmodes/c-mode.el b/lisp/progmodes/c-mode.el
index 429d0bf2292..ebab0c77130 100644
--- a/lisp/progmodes/c-mode.el
+++ b/lisp/progmodes/c-mode.el
@@ -1314,10 +1314,12 @@ definition and conveniently use this command."
 
 (defun c-delete-backslash ()
   (end-of-line)
-  (forward-char -1)
-  (if (looking-at "\\\\")
-      (delete-region (1+ (point))
-                     (progn (skip-chars-backward " \t") (point)))))
+  (or (bolp)
+      (progn
+        (forward-char -1)
+        (if (looking-at "\\\\")
+            (delete-region (1+ (point))
+                           (progn (skip-chars-backward " \t") (point)))))))
 
 (defun c-up-conditional (count)
   "Move back to the containing preprocessor conditional, leaving mark behind.