diff --git a/CHECKLST.txt b/CHECKLST.txt
index ab6ed059..34f592f8 100644
--- a/CHECKLST.txt
+++ b/CHECKLST.txt
@@ -60,7 +60,7 @@ The Windows installer script:
 The Mac resource file (used to generate the binary bit of the 'vers'
 resources -- the strings are supplied by the usual means):
 
- - putty/mac/mac_res.r
+ - putty/mac/version.r
 
 The actual release procedure
 ----------------------------
diff --git a/mac/version.r b/mac/version.r
new file mode 100644
index 00000000..afa1d4ab
--- /dev/null
+++ b/mac/version.r
@@ -0,0 +1,54 @@
+/*
+ * Current PuTTY version number.  Minor is in BCD
+ */
+#define VERSION_MAJOR 0x00
+#define VERSION_MINOR 0x53
+
+resource 'vers' (1, purgeable) {
+#ifdef RELEASE
+    VERSION_MAJOR, VERSION_MINOR,
+    beta,
+#else
+    VERSION_MAJOR, VERSION_MINOR + 1,
+    development,
+#endif
+    0, /* No prerelease version */
+    verBritain,
+#ifdef RELEASESTR
+    RELEASESTR,
+    "Release " RELEASESTR,
+#else
+#ifdef SNAPSHOTSTR
+    SNAPSHOTSTR,
+    "Development snapshot " SNAPSHOTSTR,
+#else
+    "unknown",
+    "Unidentified build, " $$Date " " $$Time,
+#endif
+#endif
+};
+
+resource 'vers' (2, purgeable) {
+#ifdef RELEASE
+    VERSION_MAJOR, VERSION_MINOR,
+    beta,
+#else
+    VERSION_MAJOR, VERSION_MINOR + 1,
+    development,
+#endif
+    0, /* No prerelease version */
+    verBritain,
+#ifdef RELEASESTR
+    RELEASESTR,
+    "PuTTY " RELEASESTR,
+#else
+#ifdef SNAPSHOTSTR
+    SNAPSHOTSTR,
+    "PuTTY snapshot " SNAPSHOTSTR,
+#else
+    "unknown",
+    "PuTTY",
+#endif
+#endif
+};
+