diff --git a/include/util/common.hpp b/include/util/common.hpp
index 63a7aa49..535259c3 100644
--- a/include/util/common.hpp
+++ b/include/util/common.hpp
@@ -69,10 +69,10 @@ to get its size in bytes.
 */
 #ifdef ARCH_MAC
 	// Use output from `xxd -i`
-	#define BINARY(sym) extern unsigned char sym[]; extern unsigned int sym##len
+	#define BINARY(sym) extern unsigned char sym[]; extern unsigned int sym##_len
 	#define BINARY_START(sym) ((const void*) sym)
 	#define BINARY_END(sym) ((const void*) sym + sym##_len)
-	#define BINARY_SIZE(sym) (sym##len)
+	#define BINARY_SIZE(sym) (sym##_len)
 #else
 	#define BINARY(sym) extern char _binary_##sym##_start, _binary_##sym##_end, _binary_##sym##_size
 	#define BINARY_START(sym) ((const void*) &_binary_##sym##_start)