diff --git a/src/Makefile b/src/Makefile
index e62a8a1..20fbe49 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,5 +1,5 @@
 CC=gcc
-CFLAGS+=-Wall -std=gnu99
+CFLAGS+=-Wall -std=gnu99 -no-pie
 
 version = $(shell git describe --always --tags --dirty)
 CFLAGS+="-DVERSION=\"$(version)\""
diff --git a/src/frontend.c b/src/frontend.c
index 1a7ddc8..bda9c5e 100644
--- a/src/frontend.c
+++ b/src/frontend.c
@@ -136,7 +136,7 @@ void validate_arguments(arguments_t *arguments) {
   if (arguments->width < 0 || arguments->height < 0) {
     errmsg = "width and height settings must be positive";
   }
-  if (arguments->remote_port != '\0' && arguments->remote_host == '\0') {
+  if (arguments->remote_port[0] != '\0' && arguments->remote_host[0] == '\0') {
     errmsg = "server address must be specified";
   }
   if (arguments->connect_remote && arguments->load_file) {