diff --git a/fs/config/config.go b/fs/config/config.go
index c4a56f096..0e6349376 100644
--- a/fs/config/config.go
+++ b/fs/config/config.go
@@ -637,7 +637,7 @@ func FileDeleteKey(section, key string) bool {
 	return LoadedData().DeleteKey(section, key)
 }
 
-var matchEnv = regexp.MustCompile(`^RCLONE_CONFIG_(.*?)_TYPE=.*$`)
+var matchEnv = regexp.MustCompile(`^RCLONE_CONFIG_(.+?)_TYPE=.*$`)
 
 // FileSections returns the sections in the config file
 // including any defined by environment variables.