=== modified file 'plugins.d/mandos-client.c'
--- plugins.d/mandos-client.c	2015-07-20 00:18:59 +0000
+++ plugins.d/mandos-client.c	2015-07-20 00:59:17 +0000
@@ -2548,7 +2548,8 @@
 	}
       }
       
-      if(strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
+      if(dh_params_file != NULL
+	 and strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
 	int dhparams_fd = open(dh_params_file, O_RDONLY);
 	if(dhparams_fd == -1){
 	  perror_plus("open");