diff --git a/scripts/build.lib.c++/build.install-lib b/scripts/build.lib.c++/build.install-lib
index a95f944..721f818 100644
--- a/scripts/build.lib.c++/build.install-lib
+++ b/scripts/build.lib.c++/build.install-lib
@@ -22,7 +22,7 @@ install_header ${@CNAME@_HEADER} ${INCLUDEDIR} 0644 || return 1
 
 # install config script
 echo "Installing config script into ${PKGCONFDIR}"
-CONFFILE="${BINDIR}/@NAME@-config"
+CONFFILE="${INSTALL_PREFIX}${BINDIR}/@NAME@-config"
 
 do_cmd rm -f "${CONFFILE}"
 do_cmd_redir "${CONFFILE}" sed \
diff --git a/scripts/build.lib.c/build.install-lib b/scripts/build.lib.c/build.install-lib
index 848d5b4..7fa800f 100644
--- a/scripts/build.lib.c/build.install-lib
+++ b/scripts/build.lib.c/build.install-lib
@@ -22,7 +22,7 @@ install_header ${@CNAME@_HEADER} ${INCLUDEDIR} 0644 || return 1
 
 # install config script
 echo "Installing config script into ${BINDIR}"
-CONFFILE="${BINDIR}/@NAME@-config"
+CONFFILE="${INSTALL_PREFIX}${BINDIR}/@NAME@-config"
 
 do_cmd rm -f "${CONFFILE}"
 do_cmd_redir "${CONFFILE}" sed \