diff --git a/owrx/config/core.py b/owrx/config/core.py
index e22f004a..afa7e745 100644
--- a/owrx/config/core.py
+++ b/owrx/config/core.py
@@ -1,6 +1,7 @@
 from owrx.config import ConfigError
 from configparser import ConfigParser
 import os
+import re
 from glob import glob
 
 
@@ -46,6 +47,23 @@ class CoreConfig(object):
         if not os.access(dir, os.W_OK):
             raise ConfigError(key, "{dir} is not writable".format(dir=dir))
 
+    # Get list of stored files, sorted in reverse alphabetic order
+    # (so that newer files appear first)
+    def getStoredFiles(self):
+        dir = self.get_temporary_directory()
+        files = [f for f in os.listdir(dir) if re.match(r"SSTV-[0-9]+-[0-9]+\.bmp", f)]
+        return sorted(files, reverse=True)
+
+    # Delete all stored files except for <keepN> newest ones
+    def cleanStoredFiles(self, keepN):
+        dir = self.get_temporary_directory()
+        files = self.getFileList()
+        for f in files[keepN:]:
+            try:
+                os.unlink(dir + "/" + f)
+            except Exception:
+                pass
+
     def get_web_port(self):
         return self.web_port
 
@@ -57,3 +75,4 @@ class CoreConfig(object):
 
     def get_aprs_symbols_path(self):
         return self.aprs_symbols_path
+
diff --git a/owrx/controllers/file.py b/owrx/controllers/file.py
index fcb5819c..becbef96 100644
--- a/owrx/controllers/file.py
+++ b/owrx/controllers/file.py
@@ -2,34 +2,14 @@ from owrx.controllers.template import WebpageController
 from owrx.controllers.assets import AssetsController
 from owrx.config.core import CoreConfig
 
-import os
-import re
-
 class FileController(AssetsController):
     def getFilePath(self, file):
         return CoreConfig().get_temporary_directory() + "/" + file
 
 
 class FilesController(WebpageController):
-    # Get list of files to work on, sorted in reverse alphabetic
-    # order (so that newer files appear first)
-    def getFileList(self):
-        dir = CoreConfig().get_temporary_directory()
-        files = [f for f in os.listdir(dir) if re.match(r'SSTV-[0-9]+-[0-9]+\.bmp', f)]
-        return sorted(files, reverse=True)
-
-    # Delete all files except for <keepN> newest ones
-    def cleanFiles(self, keepN):
-        dir = CoreConfig().get_temporary_directory()
-        files = self.getFileList()
-        for f in files[keepN:]:
-            try:
-                os.unlink(dir + "/" + f)
-            except Exception:
-                pass
-
     def template_variables(self):
-        files = self.getFileList()
+        files = CoreConfig().getStoredFiles()
         rows  = ""
 
         for i in range(len(files)):