diff --git a/configs/development.ini b/configs/development.ini
--- a/configs/development.ini
+++ b/configs/development.ini
@@ -412,6 +412,8 @@ rc_cache.cache_repo_longterm.max_size = 
 ; *************************************************
 rc_cache.cache_perms.backend = dogpile.cache.rc.file_namespace
 rc_cache.cache_perms.expiration_time = 300
+; file cache store path. Defaults to `cache_dir =` value or tempdir if both values are not set
+#rc_cache.cache_perms.arguments.filename = /tmp/cache_perms.db
 
 ; alternative `cache_perms` redis backend with distributed lock
 #rc_cache.cache_perms.backend = dogpile.cache.rc.redis
@@ -433,6 +435,8 @@ rc_cache.cache_perms.expiration_time = 3
 ; ***************************************************
 rc_cache.cache_repo.backend = dogpile.cache.rc.file_namespace
 rc_cache.cache_repo.expiration_time = 2592000
+; file cache store path. Defaults to `cache_dir =` value or tempdir if both values are not set
+#rc_cache.cache_repo.arguments.filename = /tmp/cache_repo.db
 
 ; alternative `cache_repo` redis backend with distributed lock
 #rc_cache.cache_repo.backend = dogpile.cache.rc.redis
diff --git a/configs/production.ini b/configs/production.ini
--- a/configs/production.ini
+++ b/configs/production.ini
@@ -363,6 +363,8 @@ rc_cache.cache_repo_longterm.max_size = 
 ; *************************************************
 rc_cache.cache_perms.backend = dogpile.cache.rc.file_namespace
 rc_cache.cache_perms.expiration_time = 300
+; file cache store path. Defaults to `cache_dir =` value or tempdir if both values are not set
+#rc_cache.cache_perms.arguments.filename = /tmp/cache_perms.db
 
 ; alternative `cache_perms` redis backend with distributed lock
 #rc_cache.cache_perms.backend = dogpile.cache.rc.redis
@@ -384,6 +386,8 @@ rc_cache.cache_perms.expiration_time = 3
 ; ***************************************************
 rc_cache.cache_repo.backend = dogpile.cache.rc.file_namespace
 rc_cache.cache_repo.expiration_time = 2592000
+; file cache store path. Defaults to `cache_dir =` value or tempdir if both values are not set
+#rc_cache.cache_repo.arguments.filename = /tmp/cache_repo.db
 
 ; alternative `cache_repo` redis backend with distributed lock
 #rc_cache.cache_repo.backend = dogpile.cache.rc.redis