diff --git a/firmware/hw_layer/AdcConfiguration.h b/firmware/hw_layer/AdcConfiguration.h
index 6bde754de7..582d1f6fd0 100644
--- a/firmware/hw_layer/AdcConfiguration.h
+++ b/firmware/hw_layer/AdcConfiguration.h
@@ -24,9 +24,10 @@ public:
 	int getAdcValueByIndex(int internalIndex) const;
 	void invalidateSamplesCache();
 
-	// This must be aligned on a 32-byte boundary, and be a multiple of 32 bytes long.
+	// on F7 this must be aligned on a 32-byte boundary, and be a multiple of 32 bytes long.
 	// When we invalidate the cache line(s) for ADC samples, we don't want to nuke any
-	// adjacent data
+	// adjacent data.
+	// F4 does not care
 	__ALIGNED(32) adcsample_t samples[ADC_MAX_CHANNELS_COUNT * MAX_ADC_GRP_BUF_DEPTH];
 	// Assert multiple of 32 bytes long so we don't stomp on the data after the buffer
 	static_assert(sizeof(samples) % 32 == 0);