diff --git a/tecs/Makefile b/tecs/Makefile
index 4512ef14..79a32079 100644
--- a/tecs/Makefile
+++ b/tecs/Makefile
@@ -6,7 +6,7 @@
 #--------------------------------------------------------------------------
 #------------ for DigitalUnix (add -DFORTIFY to CFLAGS for fortified version)
 CC_alpha_osf1=cc -std1 -g -warnprotos -I../ -I. -I../hardsup
-FOR_alpha_osf1=f77 -c -u -g
+FOR_alpha_osf1=f77 -u -g
 TECS_PLOT_alpha_osf1=f90 -c -u -g tecs_plot.f90
 TECLI_LIB_alpha_osf1=-L/data/lnslib/lib -lpgplot -lX11 -lXm -so_archive
 SYS_FILE_alpha_osf1=sys_aunix
@@ -14,7 +14,7 @@ SYS_FILE_alpha_osf1=sys_aunix
 
 #---------- for Redhat linux (change i386_linux to the corresponding $OSTYPE)
 CC_i386_linux= gcc -I/usr/local/include -I. -I../ -I../hardsup -DLINUX   -g 
-FOR_i386_linux= g77 -c -u -fvxt -g
+FOR_i386_linux= g77 -u -fvxt -g
 TECS_PLOT_i386_linux=g77 -c -u -g -ff90 -ffree-form tecs_plot.f
 SYS_FILE_i386_linux=sys_linux
 TECLI_LIB_i386_linux=/usr/users/tascom/zolliker/pgplot/libpgplot.a -L/usr/X11R6/lib -lX11 
@@ -36,7 +36,7 @@ TECLI_OBJ= tecs_client.o tecs_plot.o tecs_for.o sys_util.o str.o instr_hosts.o $
 
 
 .f.o:
-	$(FOR) $*.f
+	$(FOR) -c $*.f
 
 .c.o:
 	$(CC) -c $*.c