diff --git a/sys/dev/ppbus/if_plip.c b/sys/dev/ppbus/if_plip.c
index 8a35336ea99b..6c7cf7ab8aeb 100644
--- a/sys/dev/ppbus/if_plip.c
+++ b/sys/dev/ppbus/if_plip.c
@@ -770,3 +770,4 @@ static driver_t lp_driver = {
 };
 
 DRIVER_MODULE(plip, ppbus, lp_driver, lp_devclass, 0, 0);
+MODULE_DEPEND(plip, ppbus, 1, 1, 1);
diff --git a/sys/dev/ppbus/lpbb.c b/sys/dev/ppbus/lpbb.c
index a9b3667c4129..07a2f213a9fb 100644
--- a/sys/dev/ppbus/lpbb.c
+++ b/sys/dev/ppbus/lpbb.c
@@ -226,5 +226,6 @@ static driver_t lpbb_driver = {
 };
 
 DRIVER_MODULE(lpbb, ppbus, lpbb_driver, lpbb_devclass, 0, 0);
+MODULE_DEPEND(lpbb, ppbus, 1, 1, 1);
 MODULE_DEPEND(lpbb, iicbb, IICBB_MINVER, IICBB_PREFVER, IICBB_MAXVER);
 MODULE_VERSION(lpbb, 1);
diff --git a/sys/dev/ppbus/lpt.c b/sys/dev/ppbus/lpt.c
index e096cadadee2..dec1084eca97 100644
--- a/sys/dev/ppbus/lpt.c
+++ b/sys/dev/ppbus/lpt.c
@@ -965,3 +965,4 @@ static driver_t lpt_driver = {
 };
 
 DRIVER_MODULE(lpt, ppbus, lpt_driver, lpt_devclass, 0, 0);
+MODULE_DEPEND(lpt, ppbus, 1, 1, 1);
diff --git a/sys/dev/ppbus/ppi.c b/sys/dev/ppbus/ppi.c
index 77a8f8f4c2ac..f689bc14ae52 100644
--- a/sys/dev/ppbus/ppi.c
+++ b/sys/dev/ppbus/ppi.c
@@ -575,3 +575,4 @@ static driver_t ppi_driver = {
 	sizeof(struct ppi_data),
 };
 DRIVER_MODULE(ppi, ppbus, ppi_driver, ppi_devclass, 0, 0);
+MODULE_DEPEND(ppi, ppbus, 1, 1, 1);
diff --git a/sys/dev/ppbus/pps.c b/sys/dev/ppbus/pps.c
index 7a14fd14f698..37c785e7527f 100644
--- a/sys/dev/ppbus/pps.c
+++ b/sys/dev/ppbus/pps.c
@@ -321,3 +321,4 @@ static driver_t pps_driver = {
 	sizeof(struct pps_data),
 };
 DRIVER_MODULE(pps, ppbus, pps_driver, pps_devclass, 0, 0);
+MODULE_DEPEND(pps, ppbus, 1, 1, 1);
diff --git a/sys/dev/ppc/ppc.c b/sys/dev/ppc/ppc.c
index a5d4b6623412..5890ca0434bd 100644
--- a/sys/dev/ppc/ppc.c
+++ b/sys/dev/ppc/ppc.c
@@ -2153,3 +2153,4 @@ ppc_teardown_intr(device_t bus, device_t child, struct resource *r, void *ih)
 
 DRIVER_MODULE(ppc, isa, ppc_driver, ppc_devclass, 0, 0);
 DRIVER_MODULE(ppc, acpi, ppc_driver, ppc_devclass, 0, 0);
+MODULE_DEPEND(ppc, ppbus, 1, 1, 1);