diff --git a/drivers/clk/clk_k210.c b/drivers/clk/clk_k210.c
index 1961efa..f7d3696 100644
--- a/drivers/clk/clk_k210.c
+++ b/drivers/clk/clk_k210.c
@@ -846,7 +846,7 @@
 
 		error = DIV_ROUND_CLOSEST_ULL(f * inv_ratio, r * od);
 		/* The lower 16 bits are spurious */
-		error = abs((error - BIT(32))) >> 16;
+		error = abs64((error - BIT_ULL(32))) >> 16;
 
 		if (error < best_error) {
 			best->r = r;
diff --git a/test/dm/k210_pll.c b/test/dm/k210_pll.c
index a0cc84c..354720f 100644
--- a/test/dm/k210_pll.c
+++ b/test/dm/k210_pll.c
@@ -33,7 +33,7 @@
 				error = DIV_ROUND_CLOSEST_ULL(f * inv_ratio,
 							      r * od);
 				/* The lower 16 bits are spurious */
-				error = abs((error - BIT(32))) >> 16;
+				error = abs64((error - BIT_ULL(32))) >> 16;
 				if (error < best_error) {
 					best->r = r;
 					best->f = f;