diff --git a/components/esp_hw_support/include/esp_private/periph_ctrl.h b/components/esp_hw_support/include/esp_private/periph_ctrl.h
index 30090ed4c983..d960dfc5aa94 100644
--- a/components/esp_hw_support/include/esp_private/periph_ctrl.h
+++ b/components/esp_hw_support/include/esp_private/periph_ctrl.h
@@ -85,7 +85,7 @@ void periph_rcc_exit(void);
 #ifdef __PERIPH_CTRL_ALLOW_LEGACY_API
 #define __PERIPH_CTRL_DEPRECATE_ATTR
 #else
-#define __PERIPH_CTRL_DEPRECATE_ATTR __attribute__((deprecated("This function is not functional on "CONFIG_IDF_TARGET)))
+#define __PERIPH_CTRL_DEPRECATE_ATTR __attribute__((deprecated("This function is not functional on " CONFIG_IDF_TARGET)))
 #endif
 
 /**