diff --git a/CHANGELOG.develop b/CHANGELOG.develop
index 586654d12..5d21d6151 100644
--- a/CHANGELOG.develop
+++ b/CHANGELOG.develop
@@ -664,6 +664,8 @@ Other:
   - Avoid unnecessary packages installation of tern layer
   - Fixed terminal mode line indicator overlapping (thanks to duianto)
   - Fixed broken --timed-requires and --adv-timers under Emacs 27 and above (thanks to Ying Qu)
+  - Removed nils from =dotspacemacs-configuration-layers= when running tests
+    (thanks to Ag Ibragimov)
 - Other:
   - New function =configuration-layer/message= to display message in
     =*Messages*= buffer (thanks to Sylvain Benner)
diff --git a/core/core-dotspacemacs.el b/core/core-dotspacemacs.el
index 31efe646e..74d99120a 100644
--- a/core/core-dotspacemacs.el
+++ b/core/core-dotspacemacs.el
@@ -828,7 +828,7 @@ error recovery."
                           "exists in filesystem" "path")
     (setq dotspacemacs-configuration-layers
           (mapcar (lambda (l) (if (listp l) (car l) l))
-                  dotspacemacs-configuration-layers))
+                  (remove nil dotspacemacs-configuration-layers)))
     (spacemacs//test-list 'configuration-layer/get-layer-path
                           'dotspacemacs-configuration-layers
                           "can be found" "layer")