diff --git a/admin/acinclude.m4.in b/admin/acinclude.m4.in
index 51eb845..5e643da 100644
--- a/admin/acinclude.m4.in
+++ b/admin/acinclude.m4.in
@@ -1235,7 +1235,9 @@ AC_DEFUN([KDE_USE_QT],
   ac_cxxflags_safe="$CXXFLAGS"
   CXXFLAGS="$CXXFLAGS -I/usr/include/tqt"
   AC_TRY_COMPILE([
+  #define TQT_VERSION_ONLY
   #include <tqt.h>
+  #undef TQT_VERSION_ONLY
   #ifdef USE_QT4
   choke me
   #endif