diff --git a/NEWS b/NEWS
index 5a8245c..f8ecf65 100644
--- a/NEWS
+++ b/NEWS
@@ -1,8 +1,9 @@
 serd (0.18.3) unstable;
 
   * Fix possible crash in serd_writer_end_anon() when writing invalid lists
+  * Correctly handle posix_memalign failure
 
- -- David Robillard <d@drobilla.net>  Mon, 21 Jan 2013 22:03:07 -0500
+ -- David Robillard <d@drobilla.net>  Sun, 03 Feb 2013 15:07:53 -0500
 
 serd (0.18.2) stable;
 
diff --git a/src/serd_internal.h b/src/serd_internal.h
index 67e47e9..3a43dd2 100644
--- a/src/serd_internal.h
+++ b/src/serd_internal.h
@@ -67,8 +67,8 @@ serd_bufalloc(size_t size)
 {
 #ifdef HAVE_POSIX_MEMALIGN
 	void* ptr;
-	posix_memalign(&ptr, SERD_PAGE_SIZE, size);
-	return ptr;
+	const int ret = posix_memalign(&ptr, SERD_PAGE_SIZE, size);
+	return ret ? NULL : ptr;
 #else
 	return malloc(size);
 #endif