diff --git a/src/devices/machine/hdc92x4.cpp b/src/devices/machine/hdc92x4.cpp
index cda79df1137..0b92ed0a4c4 100644
--- a/src/devices/machine/hdc92x4.cpp
+++ b/src/devices/machine/hdc92x4.cpp
@@ -1746,9 +1746,9 @@ void hdc92x4_device::seek_read_id()
 	}
 
 	int cont = NEXT;
-	bool step_enable = (current_command() & 0x04)==1;
-	bool wait_seek_comp = (current_command() & 0x02)==1;
-	bool do_verify = (current_command() & 0x01)==1;
+	bool step_enable = BIT(current_command(), 2);
+	bool wait_seek_comp = BIT(current_command(), 1);
+	bool do_verify = BIT(current_command(), 0);
 	m_logical = true;
 
 	while (cont == NEXT)