diff --git a/configure.ac b/configure.ac
index 7506dfb..2e01eec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,8 +45,6 @@ AC_PROG_LN_S
 AC_PROG_MAKE_SET
 
 # Checks for libraries.
-PKG_CHECK_MODULES([XRDP], [xrdp >= 0.9.0])
-AC_SUBST(XRDP_CFLAGS)
 PKG_CHECK_MODULES([LIBPULSE], [libpulse])
 
 m4_define([PULSE_MSG], [PULSE_DIR not specified. Follow the instructions in README.md.])