diff --git a/configure.in b/configure.in
index 7e72ea951b..b32429ba20 100644
--- a/configure.in
+++ b/configure.in
@@ -641,7 +641,7 @@ AC_DEFUN([RUBY_DTRACE_AVAILABLE],
 [
     echo "provider conftest{ probe fire(); };" > conftest_provider.d
     rb_cv_dtrace_available=no
-    AS_FOR(opt, rb_dtrace_opt, ["" "-xnolibs"], [dnl
+    AS_FOR(opt, rb_dtrace_opt, ["-xnolibs" ""], [dnl
 	AS_IF([$DTRACE opt -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null],
 	    [], [continue])
 	AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();],