diff --git a/app/src/rm12/Makefile b/app/src/rm12/Makefile
deleted file mode 100644
index bbde7a5..0000000
--- a/app/src/rm12/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-main:
-
-copy:
-ifdef UTT_BIN_DIR
-	cp rm12 ${UTT_BIN_DIR}
-endif
-
-clean:
diff --git a/auto/output/Makefile b/auto/output/Makefile
index 525ff0b..4ecf585 100755
--- a/auto/output/Makefile
+++ b/auto/output/Makefile
@@ -45,7 +45,7 @@ ALL_FFLAGS = -t \$(FFLAGS)
 
 VPATH = ./src
 
-PROGRAMS = tok sen fla gph kot unfla grp mar ser kon
+PROGRAMS = tok sen fla gph kot unfla grp mar ser kon rm12
 
 TOK_OBJ_FILES = tok.o tok_cmdline.o
 TOK_FLEX_FILES = tok.l
@@ -89,6 +89,9 @@ ser: \$(SER_PERL_FILES)
 KON_PERL_FILES = kon.pl
 kon: \$(KON_PERL_FILES)
 
+RM12_SED_FILES = rm12.sed
+rm12: \$(RM12_SED_FILES)
+
 CONFIG_FILES = src/config.h Makefile
 
 .SUFFIXES:
@@ -159,5 +162,9 @@ uninstall:
 	\$(CP) \$< \$@
 	\$(CHMOD) a+x \$@
 
+%: %.sed
+	\$(CP) \$< \$@
+	\$(CHMOD) a+x \$@
+
 EOF
 
diff --git a/app/src/rm12/rm12 b/src/rm12.sed
old mode 100755
new mode 100644
similarity index 51%
rename from app/src/rm12/rm12
rename to src/rm12.sed
index d039ee2..b1b4fec
--- a/app/src/rm12/rm12
+++ b/src/rm12.sed
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sed -rf
 
 #package:	UAM Text Tools
 #component:	rm12
@@ -6,4 +6,5 @@
 #author:	Tomasz Obrebski
 
 
-sed -r '/[0-9]+[ \t]+[0-9]+[ \t]+BOS/! s/[0-9]+[ \t]+[0-9]+[ \t]//'
+/[0-9]+[ \t]+[0-9]+[ \t]+BOS/!
+s/[0-9]+[ \t]+[0-9]+[ \t]//