diff --git a/library/roles/clamav/defaults/main.yml b/library/roles/clamav/defaults/main.yml
index ebd3f86..d2f94a7 100644
--- a/library/roles/clamav/defaults/main.yml
+++ b/library/roles/clamav/defaults/main.yml
@@ -21,6 +21,10 @@ clamav_unofficial_sigs_rh_pkgs:
   - clamav-unofficial-sigs
   - perl
 
+clamav_signatures_db_dir: '/var/lib/clamav'
+clamav_signatures_dbs_to_wipe:
+  - 'scamnailer.ndb'
+
 clamav_clamd_user: clamscan
 clamav_clamd_conf_file: '/etc/clamd.d/scan.conf'  
 clamav_clamd_verbose_logging: 'yes'
diff --git a/library/roles/clamav/tasks/main.yml b/library/roles/clamav/tasks/main.yml
index 6f94e36..78484ae 100644
--- a/library/roles/clamav/tasks/main.yml
+++ b/library/roles/clamav/tasks/main.yml
@@ -34,6 +34,15 @@
   - name: Ensure that the clamd service is running and enabled
     service: name=clamd@scan state=started enabled=yes
 
+  - name: Wipe some signature files that are broken.
+    copy: content="" dest={{ clamav_signatures_db_dir }}/{{ item }} force=yes
+    with_items: '{{ clamav_signatures_dbs_to_wipe }}'
+    tags: [ 'clamav', 'clamav_clamd', 'clamav_config', 'clamav_signatures' ]
+
+  - name: Install a cron job that wipes the wrong signature files, just in case they reappear after an update
+    cron: name="Wipe some clamav signature dbs that are broken" user=root special_time=hourly job="{% for db in clamav_signatures_dbs_to_wipe %}echo '' > {{ clamav_signatures_db_dir }}/{{ db }}{% if not loop.last %}; {% endif %}{% endfor %}"
+    tags: [ 'clamav', 'clamav_clamd', 'clamav_config', 'clamav_signatures' ]
+
   when: clamav_install | bool
   tags: [ 'clamav', 'clamav_clamd', 'clamav_config' ]
 
@@ -50,7 +59,7 @@
     with_items: '{{ clamav_additional_signatures_dbs_to_wipe }}'
     notify: Restart clamd
 
-  - name: Install a cron job that wipes the wrong signature files, just in case they reappear after an update
+  - name: Install a cron job that wipes the wrong unofficial signature files, just in case they reappear after an update
     cron: name="Wipe some unofficial clamav signature dbs that are broken" user=root special_time=hourly job="{% for db in clamav_additional_signatures_dbs_to_wipe %}echo '' > {{ clamav_additional_signatures_db_dir }}/{{ db }}{% if not loop.last %}; {% endif %}{% endfor %}"
 
   when: clamav_unofficial_sigs_install | bool