diff --git a/common/util.h b/common/util.h
index ef313d6b..46318269 100644
--- a/common/util.h
+++ b/common/util.h
@@ -32,7 +32,7 @@
 #include <assert.h>
 #include <stdio.h>
 
-#if !(defined (__FreeBSD__) || defined(__OpenBSD__))
+#if !(defined (__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__))
 #include <alloca.h>
 #endif