diff --git a/dhcp/server.go b/dhcp/server.go
index a5ae650..78a072c 100644
--- a/dhcp/server.go
+++ b/dhcp/server.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package dhcp
+package dhcp // import "go.universe.tf/netboot/dhcp"
 
 import (
 	"io"
diff --git a/pcap/reader.go b/pcap/reader.go
index 88440ad..244cfcd 100644
--- a/pcap/reader.go
+++ b/pcap/reader.go
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 // Package pcap implements reading and writing the "classic" libpcap format.
-package pcap
+package pcap // import "go.universe.tf/netboot/pcap"
 
 import (
 	"bufio"
diff --git a/tftp/tftp.go b/tftp/tftp.go
index 58820c1..7088e44 100644
--- a/tftp/tftp.go
+++ b/tftp/tftp.go
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 // Package tftp implements a read-only TFTP server.
-package tftp
+package tftp // import "go.universe.tf/netboot/tftp"
 
 import (
 	"bytes"