Index: common/include/pcl/pcl_macros.h
--- common/include/pcl/pcl_macros.h.orig
+++ common/include/pcl/pcl_macros.h
@@ -368,7 +368,7 @@ pcl_round (float number)
   #define FREEBSD_MALLOC_ALIGNED 0
 #endif
 
-#if defined(__APPLE__) || defined(_WIN64) || GLIBC_MALLOC_ALIGNED || FREEBSD_MALLOC_ALIGNED
+#if defined(__APPLE__) || defined(_WIN64) || GLIBC_MALLOC_ALIGNED || FREEBSD_MALLOC_ALIGNED || defined(__OpenBSD__)
   #define MALLOC_ALIGNED 1
 #endif
 
