diff --git a/fbxa/waypoint.r b/fbxa/waypoint.r
index 5b02b3c..db9cafd 100644
--- a/fbxa/waypoint.r
+++ b/fbxa/waypoint.r
@@ -344,7 +344,7 @@ tripping the runaway loop counter
 			direct_route = FALSE;
 		}
 	}
-	if (waypoint_thinker.@this = [waypoint_queue removeItemAtHead]) {
+	if ((waypoint_thinker.@this = [waypoint_queue removeItemAtHead])) {
 		local id obj = waypoint_thinker.@this;
 		local IMP imp = [obj methodForSelector: @selector (waypointThink)];
 		waypoint_thinker.think = (void ()) imp;
diff --git a/klik/Makefile b/klik/Makefile
index 4dd43cf..c8cf057 100644
--- a/klik/Makefile
+++ b/klik/Makefile
@@ -9,7 +9,7 @@ CPP=cpp
 CPPFLAGS=-I. -Iweapons -Imdl -Iact -Imapents
 
 QFCC=qfcc
-QFCCFLAGS=-q --warn all --code v6only $(CPPFLAGS)
+QFCCFLAGS=-q --warn all,error --code v6only $(CPPFLAGS)
 
 ###############################################
 
diff --git a/klik/mapents/mapents_util.qc b/klik/mapents/mapents_util.qc
index e0abece..7b57bd1 100644
--- a/klik/mapents/mapents_util.qc
+++ b/klik/mapents/mapents_util.qc
@@ -59,7 +59,7 @@ void() util_map_entity_cull = {
 			oldself = self;
 
 			self = world;
-			while (self = find(self, targetname, self.target)) {
+			while ((self = find(self, targetname, self.target))) {
 				if (self == oldself)
 					continue;
 
diff --git a/klik/qw/sz_watch.qc b/klik/qw/sz_watch.qc
index 90bc7dd..ebd9957 100644
--- a/klik/qw/sz_watch.qc
+++ b/klik/qw/sz_watch.qc
@@ -76,7 +76,7 @@ void() SZ_init = {
 	sv_signon_buf_remaining = SV_SIGNON_BUFFERS;
 	sv_signon_remaining = SV_MAX_DATAGRAM;
 
-	while (self = nextent(self))
+	while ((self = nextent(self)))
 		SZ_GetSpace_signon(SIZEOF_BASELINE);
 	self = world;
 };
diff --git a/klik/server.qc b/klik/server.qc
index 58e8f2b..4591bfc 100644
--- a/klik/server.qc
+++ b/klik/server.qc
@@ -39,7 +39,7 @@ void() main = {
 	/* Must be first. */
 	max_clients = 0;
 	walk = world;
-	while (walk = nextent(walk)) max_clients++;
+	while ((walk = nextent(walk))) max_clients++;
 
 	sv_spawning = SV_FRAMES_BEFORE_SPAWN;