Index: uspace/drv/bus/isa/i8237.c
===================================================================
--- uspace/drv/bus/isa/i8237.c	(revision 537620a892e20fa4a4182e2f1218b44c043cc551)
+++ uspace/drv/bus/isa/i8237.c	(revision e5bc9120ed82e9b8b88a9c71d1de105d75a6ff1e)
@@ -476,10 +476,10 @@
 	/* Low byte */
 	const uint8_t value_low = pio_read_8(dma_channel.size_reg_address);
-	ddf_msg(LVL_DEBUG2, "Read size low byte: %p:%zx.",
+	ddf_msg(LVL_DEBUG2, "Read size low byte: %p:%x.",
 	    dma_channel.size_reg_address, value_low);
 	
 	/* High byte */
 	const uint8_t value_high = pio_read_8(dma_channel.size_reg_address);
-	ddf_msg(LVL_DEBUG2, "Read size high byte: %p:%zx.",
+	ddf_msg(LVL_DEBUG2, "Read size high byte: %p:%x.",
 	    dma_channel.size_reg_address, value_high);
 	fibril_mutex_unlock(&guard);