diff --git a/headphones/db.py b/headphones/db.py
index 871b7c99..f25636be 100644
--- a/headphones/db.py
+++ b/headphones/db.py
@@ -35,6 +35,10 @@ def dbFilename(filename="headphones.db"):
     return os.path.join(headphones.DATA_DIR, filename)
     
 def getCacheSize():
+    #this will protect against typecasting problems produced by empty string and None settings
+    if not headphones.CACHE_SIZEMB:
+        #sqlite will work with this (very slowly)
+        return 0
     return int(headphones.CACHE_SIZEMB)
 
 class DBConnection:
diff --git a/headphones/webserve.py b/headphones/webserve.py
index 3a508c51..34315f7b 100644
--- a/headphones/webserve.py
+++ b/headphones/webserve.py
@@ -680,7 +680,7 @@ class WebInterface(object):
         samplingfrequency=None, encoderfolder=None, advancedencoder=None, encoderoutputformat=None, encodervbrcbr=None, encoderquality=None, encoderlossless=0, 
         delete_lossless_files=0, prowl_enabled=0, prowl_onsnatch=0, prowl_keys=None, prowl_priority=0, xbmc_enabled=0, xbmc_host=None, xbmc_username=None, xbmc_password=None, 
         xbmc_update=0, xbmc_notify=0, nma_enabled=False, nma_apikey=None, nma_priority=0, nma_onsnatch=0, synoindex_enabled=False, mirror=None, customhost=None, customport=None, 
-        customsleep=None, hpuser=None, hppass=None, preferred_bitrate_high_buffer=None, preferred_bitrate_low_buffer=None, cache_sizemb=None, **kwargs):
+        customsleep=None, hpuser=None, hppass=None, preferred_bitrate_high_buffer=None, preferred_bitrate_low_buffer=None, cache_sizemb=0, **kwargs):
 
         headphones.HTTP_HOST = http_host
         headphones.HTTP_PORT = http_port
@@ -783,7 +783,7 @@ class WebInterface(object):
         headphones.CUSTOMSLEEP = customsleep
         headphones.HPUSER = hpuser
         headphones.HPPASS = hppass
-        headphones.CACHE_SIZEMB = cache_sizemb
+        headphones.CACHE_SIZEMB = int(cache_sizemb)
 
         # Handle the variable config options. Note - keys with False values aren't getting passed