diff --git a/libs/client/hud.c b/libs/client/hud.c
index a183a76d2..3ea75a46d 100644
--- a/libs/client/hud.c
+++ b/libs/client/hud.c
@@ -732,7 +732,7 @@ draw_sigils (view_t view, void *data)
 {
 	for (int i = 0; i < 4; i++) {
 		view_t      sigil = View_GetChild (view, i);
-		if (sbar_stats[STAT_ITEMS] & (1 << (28 + i))) {
+		if (sbar_stats[STAT_ITEMS] & (1u << (28 + i))) {
 			sbar_setcomponent (sigil, canvas_pic, &sb_sigil[i]);
 		} else {
 			sbar_remcomponent (sigil, canvas_pic);
diff --git a/libs/util/mdfour.c b/libs/util/mdfour.c
index f77fa0db7..7874710d0 100644
--- a/libs/util/mdfour.c
+++ b/libs/util/mdfour.c
@@ -156,7 +156,7 @@ copy64 (uint32_t * M, const unsigned char *in)
 	int         i;
 
 	for (i = 0; i < 16; i++)
-		M[i] = (in[i * 4 + 3] << 24) | (in[i * 4 + 2] << 16) |
+		M[i] = ((uint32_t) in[i * 4 + 3] << 24) | (in[i * 4 + 2] << 16) |
 			(in[i * 4 + 1] << 8) | (in[i * 4 + 0] << 0);
 }
 
diff --git a/nq/source/cl_parse.c b/nq/source/cl_parse.c
index 01726868f..1fa3e2bf1 100644
--- a/nq/source/cl_parse.c
+++ b/nq/source/cl_parse.c
@@ -593,7 +593,7 @@ CL_ParseClientdata (void)
 
 	if (cl.stats[STAT_ITEMS] != i) {				// set flash times
 		for (j = 0; j < 32; j++)
-			if ((i & (1 << j)) && !(cl.stats[STAT_ITEMS] & (1 << j)))
+			if ((i & (1u << j)) && !(cl.stats[STAT_ITEMS] & (1u << j)))
 				cl.item_gettime[j] = cl.time;
 		cl.stats[STAT_ITEMS] = i;
 #define IT_POWER (IT_QUAD | IT_SUIT | IT_INVULNERABILITY | IT_INVISIBILITY)