diff --git a/configure.ac b/configure.ac
index 527ffd5f..61462508 100644
--- a/configure.ac
+++ b/configure.ac
@@ -702,7 +702,7 @@ if test "x$enable_xps" = "xyes"; then
       AC_DEFINE([ENABLE_XPS], [1], [Enable support for XPS documents.])
    else
       enable_xps="no"
-      AC_MSG_WARN(["XPS support is disabled since libgxps (version >= $GXPS_REQUIRED) is needed])
+      AC_MSG_WARN([XPS support is disabled since libgxps (version >= $GXPS_REQUIRED) is needed])
    fi
 fi