diff --git a/plexpy/datatables.py b/plexpy/datatables.py
index 0cc94760..49dedacc 100644
--- a/plexpy/datatables.py
+++ b/plexpy/datatables.py
@@ -144,14 +144,17 @@ def build_custom_where(custom_where=[]):
         and_or = ' OR ' if w[0].endswith('OR') else ' AND '
         w[0] = w[0].rstrip(' OR')
 
-        if isinstance(w[1], (list, tuple)) and len(w[1]):
+        if w[0].endswith(' IN') and isinstance(w[1], (list, tuple)) and len(w[1]):
+            c_where += w[0] + '(' + ','.join(['?'] * len(w[1])) + ')' + and_or
+            args += w[1]
+        elif isinstance(w[1], (list, tuple)) and len(w[1]):
             c_where += '('
             for w_ in w[1]:
                 if w_ is None:
                     c_where += w[0] + ' IS NULL'
-                elif str(w_).startswith('LIKE '):
-                    c_where += w[0] + ' LIKE ?'
-                    args.append(w_[5:])
+                elif w[0].endswith(' LIKE'):
+                    c_where += w[0] + ' ?'
+                    args.append(w_)
                 elif w[0].endswith('<') or w[0].endswith('>'):
                     c_where += w[0] + '= ?'
                     args.append(w_)
@@ -163,9 +166,9 @@ def build_custom_where(custom_where=[]):
         else:
             if w[1] is None:
                 c_where += w[0] + ' IS NULL'
-            elif str(w[1]).startswith('LIKE '):
-                c_where += w[0] + ' LIKE ?'
-                args.append(w[1][5:])
+            elif w[0].endswith(' LIKE'):
+                c_where += w[0] + ' ?'
+                args.append(w[1])
             elif w[0].endswith('<') or w[0].endswith('>'):
                 c_where += w[0] + '= ?'
                 args.append(w[1])
diff --git a/plexpy/webserve.py b/plexpy/webserve.py
index 3f8890cc..c402092f 100644
--- a/plexpy/webserve.py
+++ b/plexpy/webserve.py
@@ -1978,9 +1978,9 @@ class WebInterface(object):
                 pms_connect = pmsconnect.PmsConnect()
                 result = pms_connect.get_item_children(rating_key=kwargs.pop('rating_key'), media_type=kwargs.pop('media_type'))
                 rating_keys = [child['rating_key'] for child in result['children_list']]
-                custom_where.append(['session_history_metadata.rating_key OR', rating_keys])
-                custom_where.append(['session_history_metadata.parent_rating_key OR', rating_keys])
-                custom_where.append(['session_history_metadata.grandparent_rating_key OR', rating_keys])
+                custom_where.append(['session_history_metadata.rating_key IN OR', rating_keys])
+                custom_where.append(['session_history_metadata.parent_rating_key IN OR', rating_keys])
+                custom_where.append(['session_history_metadata.grandparent_rating_key IN OR', rating_keys])
             else:
                 rating_key = helpers.split_strip(kwargs.pop('rating_key', ''))
                 if rating_key:
@@ -2024,7 +2024,7 @@ class WebInterface(object):
         if 'guid' in kwargs:
             guid = helpers.split_strip(kwargs.pop('guid', '').split('?')[0])
             if guid:
-                custom_where.append(['session_history_metadata.guid', ['LIKE ' + g + '%' for g in guid]])
+                custom_where.append(['session_history_metadata.guid LIKE', [f"{g}%" for g in guid]])
 
         data_factory = datafactory.DataFactory()
         history = data_factory.get_datatables_history(kwargs=kwargs, custom_where=custom_where,