diff --git a/VERSION b/VERSION
index b6ab061..530cdd9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.4b3
+2.2.4
diff --git a/generate.c b/generate.c
index 00f4716..6b07f7f 100644
--- a/generate.c
+++ b/generate.c
@@ -1744,7 +1744,7 @@ li_htmlify(Paragraph *p, char *arguments, int flags, MMIOT *f)
     Qprintf(f, ">");
 #if CHECKBOX_AS_INPUT
     if ( flags & GITHUB_CHECK ) {
-	Qprintf(f, "<input type=\"checkbox\"");
+	Qprintf(f, "<input disabled=\"\" type=\"checkbox\"");
 	if ( flags & IS_CHECKED )
 	    Qprintf(f, " checked=\"checked\"");
 	Qprintf(f, "/>");
diff --git a/version.c.in b/version.c.in
index 36b8619..b2c17c3 100644
--- a/version.c.in
+++ b/version.c.in
@@ -6,5 +6,8 @@ char markdown_version[] = BRANCH VERSION
 #endif
 #if USE_AMALLOC
 		" DEBUG"
+#endif
+#if GITHUB_CHECKBOX
+		" GITHUB_CHECKBOX"
 #endif
 		;