diff --git a/arch/risc-v/src/common/espressif/esp_ledc.c b/arch/risc-v/src/common/espressif/esp_ledc.c
index cbc791b681167..7a310133bcda8 100644
--- a/arch/risc-v/src/common/espressif/esp_ledc.c
+++ b/arch/risc-v/src/common/espressif/esp_ledc.c
@@ -824,11 +824,16 @@ static int ledc_set_timer_div(ledc_timer_t timer_num,
               pwmerr("Timer clock conflict. Already is %d but attempt to %d",
                      p_ledc_obj->glb_clk,
                      glb_clk);
-              return -EINVAL;
             }
         }
     }
 
+  if (timer_num == LEDC_TIMER_MAX - 1 &&
+      p_ledc_obj->glb_clk_is_acquired[timer_num - 1])
+    {
+      return -EINVAL;
+    }
+
   p_ledc_obj->glb_clk_is_acquired[timer_num] = true;
   if (p_ledc_obj->glb_clk != glb_clk)
     {