diff --git a/kernel/inc/utils/math.h b/kernel/inc/utils/math.h
index ababdf2..42523da 100644
--- a/kernel/inc/utils/math.h
+++ b/kernel/inc/utils/math.h
@@ -20,7 +20,7 @@
 
 #define MAX(a, b)       (a > b ? a : b)
 #define MIN(a, b)       (a > b ? b : a)
-#define CEIL_TO(a, b)   (a + b - (a % b))
+#define CEIL_TO(a, b)   (a % b ? a + b - (a % b) : a)
 #define FLOOR_TO(a, b)  (a     - (a % b))
 
 uint64_t pow(uint64_t base, uint64_t exp);