diff --git a/lib/isc/include/isc/util.h b/lib/isc/include/isc/util.h
index 64c26587ac..f0f7f85fa4 100644
--- a/lib/isc/include/isc/util.h
+++ b/lib/isc/include/isc/util.h
@@ -49,11 +49,11 @@
 #endif /* __GNUC__ */
 
 #if HAVE_FUNC_ATTRIBUTE_CONSTRUCTOR && HAVE_FUNC_ATTRIBUTE_DESTRUCTOR
-#define ISC_CONSTRUCTOR(priority) __attribute__((constructor(priority)))
-#define ISC_DESTRUCTOR(priority)  __attribute__((destructor(priority)))
+#define ISC_CONSTRUCTOR __attribute__((constructor))
+#define ISC_DESTRUCTOR	__attribute__((destructor))
 #elif WIN32
-#define ISC_CONSTRUCTOR(priority)
-#define ISC_DESTRUCTOR(priority)
+#define ISC_CONSTRUCTOR
+#define ISC_DESTRUCTOR
 #endif
 
 /*%
diff --git a/lib/isc/lib.c b/lib/isc/lib.c
index 31724218ff..2d6950ad63 100644
--- a/lib/isc/lib.c
+++ b/lib/isc/lib.c
@@ -36,9 +36,9 @@ isc_lib_register(void) {
 }
 
 void
-isc__initialize(void) ISC_CONSTRUCTOR(101);
+isc__initialize(void) ISC_CONSTRUCTOR;
 void
-isc__shutdown(void) ISC_DESTRUCTOR(101);
+isc__shutdown(void) ISC_DESTRUCTOR;
 
 void
 isc__initialize(void) {