diff --git a/src/if_ruby.c b/src/if_ruby.c
index aea7b56..bc15b4a 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -336,11 +336,11 @@
 #endif
 
 #ifdef RUBY19_OR_LATER
-SIGNED_VALUE rb_num2long_stub(VALUE x)
+static SIGNED_VALUE rb_num2long_stub(VALUE x)
 {
     return dll_rb_num2long(x);
 }
-VALUE rb_int2big_stub(SIGNED_VALUE x)
+static VALUE rb_int2big_stub(SIGNED_VALUE x)
 {
     return dll_rb_int2big(x);
 }
diff --git a/src/version.c b/src/version.c
index 6b2919a..fdac7f1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -726,6 +726,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    721,
+/**/
     720,
 /**/
     719,