diff --git a/daemon.py b/daemon.py
index 8f4672b5..c55e0946 100644
--- a/daemon.py
+++ b/daemon.py
@@ -1840,7 +1840,7 @@ class PubServer(BaseHTTPRequestHandler):
 
         self._benchmarkGETtimings(GETstartTime, GETtimings, 16)
 
-        for ext in ('png', 'jpg', 'gif'):
+        for ext in ('webp', 'gif', 'jpg', 'png'):
             # login screen background image
             if self.path == '/login-background.' + ext:
                 mediaFilename = \
@@ -1942,7 +1942,7 @@ class PubServer(BaseHTTPRequestHandler):
 
         self._benchmarkGETtimings(GETstartTime, GETtimings, 17)
 
-        for ext in ('png', 'jpg', 'gif'):
+        for ext in ('webp', 'gif', 'jpg', 'png'):
             # follow screen background image
             if self.path == '/follow-background.' + ext:
                 mediaFilename = \
diff --git a/theme.py b/theme.py
index 0b407d2f..f6244531 100644
--- a/theme.py
+++ b/theme.py
@@ -626,7 +626,7 @@ def setThemeImages(baseDir: str, name: str) -> None:
 
     backgroundNames = ('login', 'shares', 'delete', 'follow',
                        'options', 'block', 'search', 'calendar')
-    extensions = ('gif', 'jpg', 'png')
+    extensions = ('webp', 'gif', 'jpg', 'png')
 
     for subdir, dirs, files in os.walk(baseDir + '/accounts'):
         for acct in dirs: