diff --git a/frappyman.py b/frappyman.py
index 23bf727..538e860 100644
--- a/frappyman.py
+++ b/frappyman.py
@@ -104,7 +104,7 @@ def summarize_server_state(givencfgs, ourcfgs, sealist, sea_info, strict=False):
     for seacfg, seacfgfile, key in zip_longest(sealist, seacfgfiles, ('main', 'stick')):
         if not seacfg:
             continue
-        available = sea_info[seacfg + SEAEXT.get(key, '.addon')]
+        available = sea_info.get(seacfg + SEAEXT.get(key, '.addon'))
         if available:
             proposed = list(available)[0] if len(available) == 1 else None
             if not proposed: