diff --git a/sys/dev/mse/mse.c b/sys/dev/mse/mse.c
index 81b9bb4de93..073ea7a253e 100644
--- a/sys/dev/mse/mse.c
+++ b/sys/dev/mse/mse.c
@@ -288,7 +288,7 @@ mse_probe(dev)
 
 	/* check PnP IDs */
 	error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
-	if (error != ENOENT)
+	if (error == ENXIO)
 		return error;
 
 	sc = device_get_softc(dev);
diff --git a/sys/i386/isa/mse.c b/sys/i386/isa/mse.c
index 81b9bb4de93..073ea7a253e 100644
--- a/sys/i386/isa/mse.c
+++ b/sys/i386/isa/mse.c
@@ -288,7 +288,7 @@ mse_probe(dev)
 
 	/* check PnP IDs */
 	error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
-	if (error != ENOENT)
+	if (error == ENXIO)
 		return error;
 
 	sc = device_get_softc(dev);