diff --git a/Makefile b/Makefile
index 9d867cb3..e2bb001d 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ SRC = system syseng sysen1 sysen2 sysen3 sysnet kshack dragon channa	\
       bawden _mail_ l lisp libdoc comlap lspsrc nilcom rwk	\
       inquir acount gz sys decsys ecc alan sail kcc kcc_sy c
 DOC = info _info_ sysdoc sysnet syshst kshack _teco_ emacs emacs1 c kcc
-BIN = sys2 device emacs _teco_ lisp liblsp alan inquir sail comlap c
+BIN = sys2 device emacs _teco_ lisp liblsp alan inquir sail comlap c decsys
 
 # These directories are put on the minsys tape.
 MINSYS = _ sys
diff --git a/bin/decsys/f40.shr b/bin/decsys/f40.shr
new file mode 100755
index 00000000..56c87614
Binary files /dev/null and b/bin/decsys/f40.shr differ
diff --git a/bin/decsys/forlib.rel b/bin/decsys/forlib.rel
new file mode 100755
index 00000000..776e1f03
Binary files /dev/null and b/bin/decsys/forlib.rel differ
diff --git a/bin/decsys/forotx.shr b/bin/decsys/forotx.shr
new file mode 100755
index 00000000..4b67fd03
Binary files /dev/null and b/bin/decsys/forotx.shr differ
diff --git a/bin/decsys/jobdat.rel b/bin/decsys/jobdat.rel
new file mode 100755
index 00000000..fa8c39aa
Binary files /dev/null and b/bin/decsys/jobdat.rel differ
diff --git a/bin/decsys/loader.shr b/bin/decsys/loader.shr
new file mode 100755
index 00000000..a47d35c8
Binary files /dev/null and b/bin/decsys/loader.shr differ