diff --git a/zuul.d/playbooks/lint.yml b/zuul.d/playbooks/lint.yml
index 13d73303e..19d0d41bf 100644
--- a/zuul.d/playbooks/lint.yml
+++ b/zuul.d/playbooks/lint.yml
@@ -16,7 +16,7 @@
 - hosts: all[0]
   tasks:
     - name: Prevent trailing whitespaces
-      shell: find . -not -path "*/\.*" -not -path "*/doc/build/*" -not -name "*.tgz" -type f -exec egrep -l " +$" {} \;
+      shell: find . \! \( -path "*/\.*" -o -path "*/doc/build/*" -o -name "*.tgz" -o -name "*.png" \) -type f -exec egrep -l " +$" {} \;
       register: _found_whitespaces
       failed_when: _found_whitespaces.stdout != ""
       args: