diff --git a/sys/compat/svr4/svr4_ipc.c b/sys/compat/svr4/svr4_ipc.c
index 9904bff49549..0b6acbf5a073 100644
--- a/sys/compat/svr4/svr4_ipc.c
+++ b/sys/compat/svr4/svr4_ipc.c
@@ -385,6 +385,8 @@ svr4_sys_semsys(td, uap)
 		return EINVAL;
 	}
 }
+
+MODULE_DEPEND(svr4elf, sysvsem, 1, 1, 1);
 #endif
 
 #ifdef SYSVMSG
@@ -579,6 +581,8 @@ svr4_sys_msgsys(td, uap)
 		return EINVAL;
 	}
 }
+
+MODULE_DEPEND(svr4elf, sysvmsg, 1, 1, 1);
 #endif
 
 #ifdef SYSVSHM
@@ -788,4 +792,6 @@ svr4_sys_shmsys(td, uap)
 		return ENOSYS;
 	}
 }
+
+MODULE_DEPEND(svr4elf, sysvshm, 1, 1, 1);
 #endif /* SYSVSHM */
diff --git a/sys/i386/ibcs2/ibcs2_ipc.c b/sys/i386/ibcs2/ibcs2_ipc.c
index cdf44f1d246a..5ba7e4930589 100644
--- a/sys/i386/ibcs2/ibcs2_ipc.c
+++ b/sys/i386/ibcs2/ibcs2_ipc.c
@@ -405,3 +405,7 @@ ibcs2_shmsys(td, uap)
 	}
 	return EINVAL;
 }
+
+MODULE_DEPEND(ibcs2, sysvmsg, 1, 1, 1);
+MODULE_DEPEND(ibcs2, sysvsem, 1, 1, 1);
+MODULE_DEPEND(ibcs2, sysvshm, 1, 1, 1);