diff --git a/alliance/src/fvh/src/Makefile.am b/alliance/src/fvh/src/Makefile.am
index 0165e78b..c4c3dc47 100644
--- a/alliance/src/fvh/src/Makefile.am
+++ b/alliance/src/fvh/src/Makefile.am
@@ -1,5 +1,5 @@
 lib_LIBRARIES       = libFvh.a
-libFvh_a_SOURCES    = fbl_bcomp.y fbl_bcomp.l \
+libFvh_a_SOURCES    = fbl_bcomp_y.y fbl_bcomp_l.l \
 fbh_add.c  fbh_rmv.c	fbl_blex.h   fbl_drive.h  fvh.h       fvhfbh2fsm.c \
 fbh_del.c  fbh_typ.c	fbl_bspec.c  fbl_utdef.h  fvhdrive.c  fvhfbh2fsm.h \
 fbh_env.c  fbh_uti.c	fbl_bspec.h  fbl_util.c   fvhdrive.h  fvhparse.c \
@@ -8,7 +8,7 @@ fbh_rin.c  fbl_bedef.h	fbl_drive.c  fbl_utype.h  fvherror.h
 
 CLEANFILES          = fbl_bcompyac.c fbl_bcompyac.h fbl_bcomplex.c
 
-fbl_bcompyac.c fbl_bcompyac.h : $(srcdir)/fbl_bcomp.y
-	$(YACC) -d $(YFLAGS) $(srcdir)/fbl_bcomp.y && sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" y.tab.c > fbl_bcompyac.c && sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" y.tab.h > fbl_bcompyac.h
-fbl_bcomplex.c : $(srcdir)/fbl_bcomp.l fbl_bcompyac.h
-	$(LEX) -t $(srcdir)/fbl_bcomp.l | sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" > fbl_bcomplex.c
+fbl_bcompyac.c fbl_bcompyac.h : $(srcdir)/fbl_bcomp_y.y
+	$(YACC) -d $(YFLAGS) $(srcdir)/fbl_bcomp_y.y && sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" y.tab.c > fbl_bcompyac.c && sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" y.tab.h > fbl_bcompyac.h
+fbl_bcomplex.c : $(srcdir)/fbl_bcomp_l.l fbl_bcompyac.h
+	$(LEX) -t $(srcdir)/fbl_bcomp_l.l | sed -e "s/yy/fbl_y_/g" -e "s/YY/FBL_Y_/g" > fbl_bcomplex.c
diff --git a/alliance/src/fvh/src/fbl_bcomp.l b/alliance/src/fvh/src/fbl_bcomp_l.l
similarity index 100%
rename from alliance/src/fvh/src/fbl_bcomp.l
rename to alliance/src/fvh/src/fbl_bcomp_l.l
diff --git a/alliance/src/fvh/src/fbl_bcomp.y b/alliance/src/fvh/src/fbl_bcomp_y.y
similarity index 100%
rename from alliance/src/fvh/src/fbl_bcomp.y
rename to alliance/src/fvh/src/fbl_bcomp_y.y