diff --git a/src/if_ruby.c b/src/if_ruby.c
index d8c14c6..06465bd 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -88,8 +88,9 @@
 # define rb_int2big rb_int2big_stub
 #endif
 
-#if defined(DYNAMIC_RUBY_VER) && VIM_SIZEOF_INT < VIM_SIZEOF_LONG
-/* Ruby 2.0 defines a number of static functions which use rb_fix2int and
+#if defined(DYNAMIC_RUBY_VER) && DYNAMIC_RUBY_VER >= 19 \
+	&& VIM_SIZEOF_INT < VIM_SIZEOF_LONG
+/* Ruby 1.9 defines a number of static functions which use rb_fix2int and
  * rb_num2int if VIM_SIZEOF_INT < VIM_SIZEOF_LONG (64bit) */
 # define rb_fix2int rb_fix2int_stub
 # define rb_num2int rb_num2int_stub
@@ -202,6 +203,10 @@
 # define rb_inspect			dll_rb_inspect
 # define rb_int2inum			dll_rb_int2inum
 # if VIM_SIZEOF_INT < VIM_SIZEOF_LONG /* 64 bits only */
+#  if defined(DYNAMIC_RUBY_VER) && DYNAMIC_RUBY_VER <= 18
+#   define rb_fix2int			dll_rb_fix2int
+#   define rb_num2int			dll_rb_num2int
+#  endif
 #  define rb_num2uint			dll_rb_num2uint
 # endif
 # define rb_lastline_get			dll_rb_lastline_get
@@ -389,7 +394,8 @@
 {
     return dll_rb_int2big(x);
 }
-#  if defined(DYNAMIC_RUBY_VER) && VIM_SIZEOF_INT < VIM_SIZEOF_LONG
+#  if defined(DYNAMIC_RUBY_VER) && DYNAMIC_RUBY_VER >= 19 \
+	&& VIM_SIZEOF_INT < VIM_SIZEOF_LONG
 long rb_fix2int_stub(VALUE x)
 {
     return dll_rb_fix2int(x);
diff --git a/src/version.c b/src/version.c
index 06cc7f6..1fa43a1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    227,
+/**/
     226,
 /**/
     225,