diff --git a/motorApp/CommSrc/Makefile b/motorApp/CommSrc/Makefile
index 84f486ea..0f74a9b8 100644
--- a/motorApp/CommSrc/Makefile
+++ b/motorApp/CommSrc/Makefile
@@ -3,7 +3,6 @@ TOP = ../..
 include $(TOP)/configure/CONFIG
 
 # The following are used for debugging messages.
-#USR_CFLAGS += -DDEBUG
 #USR_CXXFLAGS += -DDEBUG
 
 INC += gpibIO.h serialIO.h
@@ -28,5 +27,8 @@ ifdef MPF
 SRCS += serialIOMPF.cc
 endif
 
+motorCOM_mpf_LIBS += mpf mpfEpics mpfSerial
+motorCOM_mpf_LIBS += $(EPICS_BASE_IOC_LIBS)
+
 include $(TOP)/configure/RULES