diff --git a/src/include/switch_platform.h b/src/include/switch_platform.h
index 609dde8b7a..17c972c989 100644
--- a/src/include/switch_platform.h
+++ b/src/include/switch_platform.h
@@ -112,6 +112,9 @@ typedef int gid_t;
 
 #else
 /* packed attribute */
+#if (defined __SUNPRO_CC) || defined(__SUNPRO_C)
+#define PACKED
+#endif
 #ifndef PACKED
 #define PACKED __attribute__ ((__packed__))
 #endif