diff --git a/src/Makefile b/src/Makefile
index ad00bc90b..1c38e51f3 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -64,6 +64,9 @@ ioc_DEPEND_DIRS = libCom ca/client
 DIRS += ioc/db/test
 ioc/db/test_DEPEND_DIRS = ioc libCom/RTEMS
 
+DIRS += ioc/db/filters/test
+ioc/db/filters/test_DEPEND_DIRS = ioc libCom/RTEMS
+
 # PDB Standard Record Definitions
 
 DIRS += std