-# PLUGINSDIR: Plugins directory
-AC_ARG_VAR([PLUGINSDIR], [built-in plugins install directory [LIBDIR/babeltrace2/plugins]])
-AS_IF([test "x$PLUGINSDIR" = x], [PLUGINSDIR='$(libdir)/babeltrace2/plugins'])
+# BABELTRACE_PLUGINS_DIR: Plugins directory
+AC_ARG_VAR([BABELTRACE_PLUGINS_DIR], [built-in plugins install directory [LIBDIR/babeltrace2/plugins]])
+AS_IF([test "x$BABELTRACE_PLUGINS_DIR" = x], [BABELTRACE_PLUGINS_DIR='${libdir}/babeltrace2/plugins'])
+
+# BABELTRACE_PLUGIN_PROVIDERS_DIR: Plugin providers directory
+AC_ARG_VAR([BABELTRACE_PLUGIN_PROVIDERS_DIR], [built-in plugin providers install directory [LIBDIR/babeltrace2/plugin-providers]])
+AS_IF([test "x$BABELTRACE_PLUGIN_PROVIDERS_DIR" = x], [BABELTRACE_PLUGIN_PROVIDERS_DIR='${libdir}/babeltrace2/plugin-providers'])