diff --git a/configure.ac b/configure.ac
index 2ea6d5d0..c200e6d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -83,10 +83,10 @@ dnl ================================================================
 AC_MSG_CHECKING([for gradle])
 if test -e ${GRADLE} ; then
     AC_MSG_RESULT([${GRADLE}])
-    AM_CONDITIONAL(HAVE_GRADLE, [1])
+    AM_CONDITIONAL(HAVE_GRADLE, [test 1 = 1])
 else
     AC_MSG_RESULT([no])
-    AM_CONDITIONAL(HAVE_GRADLE, [0])
+    AM_CONDITIONAL(HAVE_GRADLE, [test 0 = 0])
 fi
 
 AC_SUBST(GRADLE)