diff --git a/drivers/clk/clk_divider.c b/drivers/clk/clk_divider.c
index 96fd643141..7490e3dd4a 100644
--- a/drivers/clk/clk_divider.c
+++ b/drivers/clk/clk_divider.c
@@ -304,7 +304,7 @@ static int32_t divider_get_val(uint32_t rate, uint32_t parent_rate,
 
   div = div_round_up(parent_rate, rate);
 
-  if ((flags & CLK_DIVIDER_POWER_OF_TWO) && !is_power_of_2(div))
+  if ((flags & CLK_DIVIDER_POWER_OF_TWO) && !IS_POWER_OF_2(div))
     {
       return -EINVAL;
     }
diff --git a/include/nuttx/lib/math32.h b/include/nuttx/lib/math32.h
index e3e7bd165f..593bd868c7 100644
--- a/include/nuttx/lib/math32.h
+++ b/include/nuttx/lib/math32.h
@@ -114,7 +114,6 @@ extern "C"
  * Public Function Prototypes
  ****************************************************************************/
 
-#define is_power_of_2(n) IS_POWER_OF_2(n)
 #define flsx(n) ((sizeof(n) <= sizeof(long)) ? flsl(n) : flsll(n))
 
 /****************************************************************************
@@ -131,7 +130,7 @@ extern "C"
  *
  ****************************************************************************/
 
-#define log2ceil(n) (is_power_of_2(n) ? (flsx(n) - 1) : flsx(n))
+#define log2ceil(n) (IS_POWER_OF_2(n) ? (flsx(n) - 1) : flsx(n))
 
 /****************************************************************************
  * Name: log2floor