diff --git a/lisp/erc/erc-dcc.el b/lisp/erc/erc-dcc.el
index 8a40b1454b4..2849e25bf77 100644
--- a/lisp/erc/erc-dcc.el
+++ b/lisp/erc/erc-dcc.el
@@ -979,17 +979,20 @@ rather than every 1024 byte block, but nobody seems to care."
     (let ((inhibit-read-only t)
           received-bytes)
       (goto-char (point-max))
-      (insert (string-make-unibyte str))
+      (if str
+          (insert (string-make-unibyte str)))
 
       (when (> (point-max) erc-dcc-receive-cache)
         (erc-dcc-append-contents (current-buffer) erc-dcc-file-name))
-      (setq received-bytes (+ (buffer-size) erc-dcc-byte-count))
+      (setq received-bytes (buffer-size))
+      (if erc-dcc-byte-count
+          (setq received-bytes (+ received-bytes erc-dcc-byte-count)))
 
       (and erc-dcc-verbose
            (erc-display-message
             nil 'notice erc-server-process
             'dcc-get-bytes-received
-            ?f (file-name-nondirectory buffer-file-name)
+            ?f (file-name-nondirectory (buffer-name))
             ?b (number-to-string received-bytes)))
       (cond
        ((and (> (plist-get erc-dcc-entry-data :size) 0)
@@ -997,7 +1000,7 @@ rather than every 1024 byte block, but nobody seems to care."
         (erc-display-message
          nil '(notice error) 'active
          'dcc-get-file-too-long
-         ?f (file-name-nondirectory buffer-file-name))
+         ?f (file-name-nondirectory (buffer-name)))
         (delete-process proc))
        (t
         (process-send-string
diff --git a/lisp/progmodes/compile.el b/lisp/progmodes/compile.el
index 9fbe3614fd1..c3ff57633a3 100644
--- a/lisp/progmodes/compile.el
+++ b/lisp/progmodes/compile.el
@@ -1401,17 +1401,17 @@ to `compilation-error-regexp-alist' if RULES is nil."
                              file line end-line col end-col (or type 2) fmt))
 
             (when (integerp file)
-              (setq type (if (consp type)
-                             (compilation-type type)
-                           (or type 2)))
-              (compilation--note-type type)
+              (let ((this-type (if (consp type)
+                                   (compilation-type type)
+                                 (or type 2))))
+                (compilation--note-type type)
 
-              (compilation--put-prop
-               file 'font-lock-face
-               (symbol-value (aref [compilation-info-face
-                                    compilation-warning-face
-                                    compilation-error-face]
-                                   type))))
+                (compilation--put-prop
+                 file 'font-lock-face
+                 (symbol-value (aref [compilation-info-face
+                                      compilation-warning-face
+                                      compilation-error-face]
+                                     this-type)))))
 
             (compilation--put-prop
              line 'font-lock-face compilation-line-face)