diff --git a/balance.c b/balance.c
index f66d999..5d0498e 100644
--- a/balance.c
+++ b/balance.c
@@ -211,7 +211,7 @@ static void
 channel_map(BalanceControl *self, int mode,
 		const uint32_t start, const uint32_t end)
 {
-	int i;
+	uint32_t i;
 	switch (mode) {
 		case 1:
 			for (i=start; i < end; ++i) {
@@ -360,7 +360,7 @@ static void update_meter_cfg(BalanceControl* self, int key, float val) {
 static void
 run(LV2_Handle instance, uint32_t n_samples)
 {
-	int i,c;
+	uint32_t i,c;
 	BalanceControl* self = (BalanceControl*)instance;
 	const float balance = *self->balance;
 	const float trim = db_to_gain(*self->trim);
diff --git a/ui.c b/ui.c
index 126d470..659665c 100644
--- a/ui.c
+++ b/ui.c
@@ -1052,7 +1052,7 @@ onReshape(PuglView* view, int width, int height)
 
 static void updateLight(PuglView* view) {
   BLCui* ui = (BLCui*)puglGetHandle(view);
-  GLfloat light0_position[] = {  .5 + ui->rot[0]/90.0, -.5 - ui->rot[1]/90.0, -10.0, 0 };
+  GLfloat light0_position[] = {  (float)(.5 + ui->rot[0] / 90.0), (float)(-.5 - ui->rot[1] / 90.0), -10.f, 0.f };
   GLfloat spot_direction[]  = { -light0_position[0], -light0_position[1], -light0_position[2]};
 
   glLightfv(GL_LIGHT0, GL_POSITION, light0_position);