diff --git a/motorApp/MotorSrc/Makefile b/motorApp/MotorSrc/Makefile
index 2389589f..8ad7608b 100644
--- a/motorApp/MotorSrc/Makefile
+++ b/motorApp/MotorSrc/Makefile
@@ -12,11 +12,14 @@ DBD += motorSupport.dbd
 
 INC += motor.h motordevCom.h motordrvCom.h
 INC += motordrvComCode.h
+INC += motor_interface.h
 
 LIBRARY_IOC += motor
 
 # The following are required for all motor record configurations.
 motor_SRCS += motorRecord.cc motordevCom.cc motordrvCom.cc
+motor_SRCS += drvMotorAsyn.c
+motor_SRCS += devMotorAsyn.c
 motor_SRCS += motorUtil.cc motorUtilAux.cc
 
 motor_LIBS += $(EPICS_BASE_IOC_LIBS)