diff --git a/demos/AVR-AT90CANx-GCC/halconf.h b/demos/AVR-AT90CANx-GCC/halconf.h
index 3858828e6..ce9115bfe 100644
--- a/demos/AVR-AT90CANx-GCC/halconf.h
+++ b/demos/AVR-AT90CANx-GCC/halconf.h
@@ -51,6 +51,13 @@
 #define HAL_USE_ADC                 FALSE
 #endif
 
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
 /**
  * @brief   Enables the CAN subsystem.
  */
diff --git a/demos/AVR-ATmega128-GCC/halconf.h b/demos/AVR-ATmega128-GCC/halconf.h
index 3858828e6..ce9115bfe 100644
--- a/demos/AVR-ATmega128-GCC/halconf.h
+++ b/demos/AVR-ATmega128-GCC/halconf.h
@@ -51,6 +51,13 @@
 #define HAL_USE_ADC                 FALSE
 #endif
 
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
 /**
  * @brief   Enables the CAN subsystem.
  */
diff --git a/demos/AVR-Arduino-GCC/halconf.h b/demos/AVR-Arduino-GCC/halconf.h
index 3858828e6..ce9115bfe 100644
--- a/demos/AVR-Arduino-GCC/halconf.h
+++ b/demos/AVR-Arduino-GCC/halconf.h
@@ -51,6 +51,13 @@
 #define HAL_USE_ADC                 FALSE
 #endif
 
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
 /**
  * @brief   Enables the CAN subsystem.
  */
diff --git a/demos/AVR-ArduinoMega-GCC/halconf.h b/demos/AVR-ArduinoMega-GCC/halconf.h
index 3858828e6..ce9115bfe 100644
--- a/demos/AVR-ArduinoMega-GCC/halconf.h
+++ b/demos/AVR-ArduinoMega-GCC/halconf.h
@@ -51,6 +51,13 @@
 #define HAL_USE_ADC                 FALSE
 #endif
 
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
 /**
  * @brief   Enables the CAN subsystem.
  */