diff --git a/emulators/frodo/Makefile b/emulators/frodo/Makefile
index cc99648e4362..99583f299b0d 100644
--- a/emulators/frodo/Makefile
+++ b/emulators/frodo/Makefile
@@ -25,7 +25,7 @@ do-configure:
 	@(cd ${WRKSRC}; ${SH} ./configure)
 
 do-install:
-	${SED} -e 's/\$${PREFIX}/${PREFIX:S/\//\\\//g}/g' \
+	${SED} -e 's=\$${PREFIX}=${PREFIX}=g' \
 		 < ${FILESDIR}/frodo > ${WRKDIR}/frodo
 	${INSTALL_SCRIPT} ${WRKDIR}/frodo ${PREFIX}/bin
 	${MKDIR} ${PREFIX}/libexec/frodo
diff --git a/emulators/frodo/files/patch-TkGui.tcl b/emulators/frodo/files/patch-TkGui.tcl
index c617ea7a053d..6a94e3408dbc 100644
--- a/emulators/frodo/files/patch-TkGui.tcl
+++ b/emulators/frodo/files/patch-TkGui.tcl
@@ -2,7 +2,7 @@
 +++ ../TkGui.tcl	Mon Apr 26 21:49:18 1999
 @@ -1,9 +1,9 @@
 -#!/usr/local/bin/X11/wish
-+#!/usr/local/bin/wish8.0 -f
++#!/usr/local/bin/wish8.2 -f
  
  # Frodo Tk GUI by Lutz Vieweg <lkv@mania.robin.de>
  # requires Tk >= 4.1