put macro value in parentheses

diff --git a/src/meshlink.h b/src/meshlink.h
index 85a0cb75ce9ca3b0d82b9bf6fee2a8a9df7848a3..3f8c1c82d1bca5b6e137cfe5bd925f86b574bd14 100644 (file)
--- a/src/meshlink.h
+++ b/src/meshlink.h
@@ -30,7 +30,7 @@ extern "C" {
 #endif
 
 /// The length in bytes of a signature made with meshlink_sign()
-#define MESHLINK_SIGLEN 64
+#define MESHLINK_SIGLEN  (64)
 
 /// A handle for an instance of MeshLink.
 typedef struct meshlink_handle meshlink_handle_t;