diff --git a/src/mkheader.c b/src/mkheader.c
index 5aeb1e7..121d029 100644
--- a/src/mkheader.c
+++ b/src/mkheader.c
@@ -91,23 +91,41 @@ canon_host_triplet (const char *triplet)
     {"armv5-unknown-linux-musleabi"   },
     {"armv6-unknown-linux-musleabihf" },

+    {"armv7-apple-darwin", "arm-apple-darwin"},
+
     { NULL }
   };
   int i;
   const char *lastalias = NULL;

+    /* Darwin triplet de-versioning */
+  char *res_triplet = xstrdup (triplet);
+
+  char *triplet_last = strrchr(res_triplet, '-');
+  if (triplet_last == NULL) {
+    fprintf (stderr, PGM ": unexpected host triplet missing any separator: '%s'",
+               res_triplet);
+    exit (1);
+  }
+  triplet_last++; /* Advance past the dash */
+  if (strncmp("darwin", triplet_last, 6) == 0) {
+    triplet_last[6] = '\0';
+  }
+
   for (i=0; tbl[i].name; i++)
     {
       if (tbl[i].alias)
         lastalias = tbl[i].alias;
-      if (!strcmp (tbl[i].name, triplet))
+      if (!strcmp (tbl[i].name, res_triplet))
         {
           if (!lastalias)
             break; /* Ooops: first entry has no alias.  */
+          free(res_triplet);
           return xstrdup (lastalias);
         }
     }
-  return xstrdup (triplet);
+
+  return res_triplet;
 }