diff --git a/net-libs/libhackrf/libhackrf-2015.07.2.ebuild b/net-libs/libhackrf/libhackrf-2015.07.2.ebuild
index cac4656dc3fa4..fed57f02b3bab 100644
--- a/net-libs/libhackrf/libhackrf-2015.07.2.ebuild
+++ b/net-libs/libhackrf/libhackrf-2015.07.2.ebuild
@@ -42,5 +42,5 @@ src_configure(){
 }
 
 pkg_postinst() {
-	einfo "Users in the usb group can use hackrf."
+	use udev && einfo "Users in the usb group can use hackrf."
 }
diff --git a/net-libs/libhackrf/libhackrf-9999.ebuild b/net-libs/libhackrf/libhackrf-9999.ebuild
index cac4656dc3fa4..fed57f02b3bab 100644
--- a/net-libs/libhackrf/libhackrf-9999.ebuild
+++ b/net-libs/libhackrf/libhackrf-9999.ebuild
@@ -42,5 +42,5 @@ src_configure(){
 }
 
 pkg_postinst() {
-	einfo "Users in the usb group can use hackrf."
+	use udev && einfo "Users in the usb group can use hackrf."
 }