diff --git a/Makefile.win b/Makefile.win
index f5e39bbc4..d650d3760 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -5,7 +5,7 @@ FC = df
 #To do bounds checking (with useless reports) put "/check:all" in the
 # --opt= line below (line 56, more or less ...)
 #FFLAGS = /traceback /check:all
-FFLAGS = /traceback /fast /nologo
+FFLAGS = /traceback /fast /nologo /check:all
 
 all:    MAP65.EXE
 
@@ -16,7 +16,7 @@ F2PYONLY = ftn_init ftn_quit audio_init getfile azdist0 astro0 \
 
 SRCS2F90 = a2d.f90 astro0.f90 audio_init.f90 azdist0.f90 \
 	decode1.f90 ftn_init.f90 ftn_quit.f90 wsjtgen.f90 \
-	runqqq.f90 fivehz.f90 flushqqq.f90 sysqqq.f90 map65a0.f90 \
+	runqqq.f90 fivehz.f90 flushqqq.f90 map65a0.f90 \
 	rfile.f90 rfile3a.f90 spec.f90 map65a.f90
 
 SRCS2F77 = indexx.f gen65.f chkmsg.f \