diff --git a/components/esp32/include/esp32/clk.h b/components/esp32/include/esp32/clk.h
index 4e32fd16e..dde169a16 100644
--- a/components/esp32/include/esp32/clk.h
+++ b/components/esp32/include/esp32/clk.h
@@ -15,6 +15,10 @@
 #pragma once
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @file esp32/clk.h
  *
@@ -85,3 +89,7 @@ int esp_clk_xtal_freq(void);
  * @return Value or RTC counter, expressed in microseconds
  */
 uint64_t esp_clk_rtc_time(void);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/components/esp32s2beta/include/esp32s2beta/clk.h b/components/esp32s2beta/include/esp32s2beta/clk.h
index 06ada586b..8a0952fad 100644
--- a/components/esp32s2beta/include/esp32s2beta/clk.h
+++ b/components/esp32s2beta/include/esp32s2beta/clk.h
@@ -13,6 +13,11 @@
 // limitations under the License.
 
 #pragma once
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /**
  * @file esp_clk.h
@@ -73,3 +78,7 @@ int esp_clk_apb_freq(void);
  * @return Value or RTC counter, expressed in microseconds
  */
 uint64_t esp_clk_rtc_time(void);
+
+#ifdef __cplusplus
+}
+#endif