diff --git a/package/x11r7/xapp_xcalc/xapp_xcalc.mk b/package/x11r7/xapp_xcalc/xapp_xcalc.mk
index 58fbdf5710..9445af75e7 100644
--- a/package/x11r7/xapp_xcalc/xapp_xcalc.mk
+++ b/package/x11r7/xapp_xcalc/xapp_xcalc.mk
@@ -11,5 +11,6 @@ XAPP_XCALC_LICENSE = MIT
 XAPP_XCALC_LICENSE_FILES = COPYING
 XAPP_XCALC_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) install-exec install-data
 XAPP_XCALC_DEPENDENCIES = xlib_libXaw
+XAPP_XCALC_CONF_OPTS = --with-appdefaultdir=/usr/share/X11/app-defaults
 
 $(eval $(autotools-package))