diff --git a/asdf.asd b/asdf.asd
index ffd386a850ef2165e9386d6b1b1a1f9f08762557..13c84f6b333399970efc17a02a309b1fd74cd6b5 100644
--- a/asdf.asd
+++ b/asdf.asd
@@ -14,7 +14,7 @@
   :licence "MIT"
   :description "Another System Definition Facility"
   :long-description "ASDF builds Common Lisp software organized into defined systems."
-  :version "2.018.1" ;; to be automatically updated by bin/bump-revision
+  :version "2.018.2" ;; to be automatically updated by bin/bump-revision
   :depends-on ()
   :components
   ((:file "asdf")
diff --git a/asdf.lisp b/asdf.lisp
index 6ed5281d117fb77ef48fda47a22d0812da238744..991266d8051f3c4c57d4450445cb629fb20332f3 100644
--- a/asdf.lisp
+++ b/asdf.lisp
@@ -1,5 +1,5 @@
 ;;; -*- mode: Common-Lisp; Base: 10 ; Syntax: ANSI-Common-Lisp -*-
-;;; This is ASDF 2.018.1: Another System Definition Facility.
+;;; This is ASDF 2.018.2: Another System Definition Facility.
 ;;;
 ;;; Feedback, bug reports, and patches are all welcome:
 ;;; please mail to <asdf-devel@common-lisp.net>.
@@ -107,7 +107,7 @@
          ;; "2.345.6" would be a development version in the official upstream
          ;; "2.345.0.7" would be your seventh local modification of official release 2.345
          ;; "2.345.6.7" would be your seventh local modification of development version 2.345.6
-         (asdf-version "2.018.1")
+         (asdf-version "2.018.2")
          (existing-asdf (find-class 'component nil))
          (existing-version *asdf-version*)
          (already-there (equal asdf-version existing-version)))
@@ -2974,7 +2974,7 @@ output to *VERBOSE-OUT*.  Returns the shell's exit code."
 
     #+cormanlisp
     (win32:system command)
-    
+
     #+ecl ;; courtesy of Juan Jose Garcia Ripoll
     (ext:system command)
 
@@ -3868,8 +3868,10 @@ with a different configuration, so the configuration would be re-read then."
     (filter-logical-directory-results
      directory entries
      #'(lambda (f)
-         (make-pathname :defaults directory :version (pathname-version f)
-                        :name (pathname-name f) :type (pathname-type f))))))
+         (make-pathname :defaults directory
+                        :name (pathname-name f) :type (pathname-type f)
+                        :version (let ((it (pathname-version f)))
+                                   (unless (eq it :unspecific) it)))))))
 
 (defun* directory-asd-files (directory)
   (directory-files directory *wild-asd*))