diff --git a/motorApp/OmsSrc/Makefile b/motorApp/OmsSrc/Makefile
index ed43a334..9dcfbd3a 100644
--- a/motorApp/OmsSrc/Makefile
+++ b/motorApp/OmsSrc/Makefile
@@ -27,8 +27,10 @@ SRCS += devMAXv.cc drvMAXv.cc
 
 # Trajectory support for MAXV controller
 ifdef SNCSEQ
+ifdef ASYN
 SRCS += MAX_trajectoryScan.st
 endif
+endif
 
 # The following is required for all OMS device drivers.
 SRCS += devOmsCom.cc