diff --git a/src/regex_impl.cc b/src/regex_impl.cc
index ee560d21..16b22681 100644
--- a/src/regex_impl.cc
+++ b/src/regex_impl.cc
@@ -14,14 +14,6 @@
 #include <cstring>
 #include <limits>
 
-#ifndef __packed
-#if defined(__GNUC__)
-#define __packed	__attribute__((packed))
-#else
-#define __packed
-#endif
-#endif
-
 namespace Kakoune
 {
 
@@ -82,7 +74,7 @@ struct ParsedRegex
     };
 
     using NodeIndex = uint16_t;
-    struct Node
+    struct [[gnu::packed]] Node
     {
         Op op;
         bool ignore_case;
@@ -90,7 +82,7 @@ struct ParsedRegex
         Codepoint value;
         Quantifier quantifier;
         uint16_t filler = 0;
-    } __packed;
+    };
     static_assert(sizeof(Node) == 16, "");
 
     Vector<Node, MemoryDomain::Regex> nodes;