diff --git a/etiquette/objects.py b/etiquette/objects.py
index d7f930b..0eb0b19 100644
--- a/etiquette/objects.py
+++ b/etiquette/objects.py
@@ -694,7 +694,7 @@ class Photo(ObjectBase):
         return_filepath = None
 
         if self.simple_mimetype == 'image':
-            self.photodb.log.debug('Thumbnailing %s' % self.real_path.absolute_path)
+            self.photodb.log.debug('Thumbnailing %s', self.real_path.absolute_path)
             try:
                 image = PIL.Image.open(self.real_path.absolute_path)
             except (OSError, ValueError):
@@ -728,6 +728,7 @@ class Photo(ObjectBase):
 
         elif self.simple_mimetype == 'video' and constants.ffmpeg:
             #print('video')
+            self.photodb.log.debug('Thumbnailing %s', self.real_path.absolute_path)
             probe = constants.ffmpeg.probe(self.real_path.absolute_path)
             try:
                 if probe.video:
diff --git a/etiquette/photodb.py b/etiquette/photodb.py
index 9cffd43..6e5884e 100644
--- a/etiquette/photodb.py
+++ b/etiquette/photodb.py
@@ -348,6 +348,7 @@ class PDBPhotoMixin:
             extension_not=None,
             filename=None,
             has_tags=None,
+            has_thumbnail=None,
             mimetype=None,
             tag_musts=None,
             tag_mays=None,
@@ -393,6 +394,10 @@ class PDBPhotoMixin:
             If False, require that the Photo has no tags.
             If None, any amount is okay.
 
+        has_thumbnail:
+            Require a thumbnail?
+            If None, anything is okay.
+
         mimetype:
             A string or list of strings of acceptable mimetypes.
             'image', 'video', ...
@@ -481,6 +486,7 @@ class PDBPhotoMixin:
         filename = searchhelpers.normalize_filename(filename)
 
         limit = searchhelpers.normalize_limit(limit, warning_bag=warning_bag)
+        has_thumbnail = searchhelpers.normalize_has_thumbnail(has_thumbnail)
 
         offset = searchhelpers.normalize_offset(offset)
         if offset is None:
@@ -499,6 +505,7 @@ class PDBPhotoMixin:
         orderby = searchhelpers.normalize_orderby(orderby, warning_bag=warning_bag)
 
         notnulls = set()
+        yesnulls = set()
         if extension or mimetype:
             notnulls.add('extension')
         if width or height or ratio or area:
@@ -508,6 +515,11 @@ class PDBPhotoMixin:
         if duration:
             notnulls.add('duration')
 
+        if has_thumbnail is True:
+            notnulls.add('thumbnail')
+        elif has_thumbnail is False:
+            yesnulls.add('thumbnail')
+
         if orderby is None:
             giveback_orderby = None
         else:
@@ -565,6 +577,7 @@ class PDBPhotoMixin:
                 'extension_not': extension_not,
                 'filename': filename,
                 'has_tags': has_tags,
+                'has_thumbnail': has_thumbnail,
                 'mimetype': mimetype,
                 'tag_musts': tag_musts,
                 'tag_mays': tag_mays,
@@ -596,6 +609,7 @@ class PDBPhotoMixin:
                 minimums=minimums,
                 mmf_results=mmf_results,
                 notnulls=notnulls,
+                yesnulls=yesnulls,
                 orderby=orderby,
             )
             print(query[:200])
diff --git a/etiquette/searchhelpers.py b/etiquette/searchhelpers.py
index 3dbcb74..9e34448 100644
--- a/etiquette/searchhelpers.py
+++ b/etiquette/searchhelpers.py
@@ -18,12 +18,16 @@ def build_query(
         minimums=None,
         mmf_results=None,
         notnulls=None,
+        yesnulls=None,
         orderby=None,
     ):
 
     if notnulls is None:
         notnulls = set()
 
+    if yesnulls is None:
+        yesnulls = set()
+
     query = ['SELECT * FROM photos']
     wheres = set()
 
@@ -60,6 +64,9 @@ def build_query(
     for column in notnulls:
         wheres.add(column + ' IS NOT NULL')
 
+    for column in yesnulls:
+        wheres.add(column + ' IS NULL')
+
     if wheres:
         wheres = 'WHERE '  + ' AND '.join(wheres)
         query.append(wheres)
@@ -265,6 +272,9 @@ def normalize_has_tags(has_tags):
 
     return None
 
+def normalize_has_thumbnail(has_thumbnail):
+    return helpers.truthystring(has_thumbnail)
+
 def normalize_limit(limit, warning_bag=None):
     if not limit and limit != 0:
         return None
diff --git a/frontends/etiquette_flask/etiquette_flask/endpoints/photo_endpoints.py b/frontends/etiquette_flask/etiquette_flask/endpoints/photo_endpoints.py
index 599c252..5bc4740 100644
--- a/frontends/etiquette_flask/etiquette_flask/endpoints/photo_endpoints.py
+++ b/frontends/etiquette_flask/etiquette_flask/endpoints/photo_endpoints.py
@@ -235,6 +235,7 @@ def get_search_core():
     height = request.args.get('height')
     ratio = request.args.get('ratio')
     bytes = request.args.get('bytes')
+    has_thumbnail = request.args.get('has_thumbnail')
     duration = request.args.get('duration')
     created = request.args.get('created')
 
@@ -253,6 +254,7 @@ def get_search_core():
         'extension_not': extension_not,
         'filename': filename_terms,
         'has_tags': has_tags,
+        'has_thumbnail': has_thumbnail,
         'mimetype': mimetype,
         'tag_musts': tag_musts,
         'tag_mays': tag_mays,
diff --git a/frontends/etiquette_flask/templates/search.html b/frontends/etiquette_flask/templates/search.html
index 4292f73..20d1702 100644
--- a/frontends/etiquette_flask/templates/search.html
+++ b/frontends/etiquette_flask/templates/search.html
@@ -267,6 +267,11 @@ form
                 <option value="yes"{%if search_kwargs['has_tags'] == True %}selected{%endif%}>Tagged only</option>
                 <option value="no" {%if search_kwargs['has_tags'] == False %}selected{%endif%}>Untagged only</option>
             </select>
+            <select name="has_thumbnail" class="basic_param">
+                <option value=""   {%if search_kwargs['has_thumbnail'] == None %}selected{%endif%}>Thumbnail doesn't matter</option>
+                <option value="yes"{%if search_kwargs['has_thumbnail'] == True %}selected{%endif%}>Has thumbnail</option>
+                <option value="no" {%if search_kwargs['has_thumbnail'] == False %}selected{%endif%}>No thumbnail</option>
+            </select>
             <select name="view" class="basic_param">
                 <option value="grid" {%if search_kwargs['view'] == "grid" %}selected{%endif%}>Grid</option>
                 <option value="list" {%if search_kwargs['view'] == "list" %}selected{%endif%}>List</option>