diff --git a/CHANGELOG b/CHANGELOG
index 9d55e883..d9ab7bc2 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -20,6 +20,8 @@
 
 * Fixed behavior of unclosed (multi-paragraph) quotes and incorrect handling of links inside double quotations. #59, #63
 
+* Fixed empty block HTML disappearing. #64
+
 
 *4.0.3 (August 18, 2008)*
 
diff --git a/ext/redcloth_scan/redcloth_inline.rl b/ext/redcloth_scan/redcloth_inline.rl
index bd912880..43db672d 100644
--- a/ext/redcloth_scan/redcloth_inline.rl
+++ b/ext/redcloth_scan/redcloth_inline.rl
@@ -206,7 +206,7 @@ red_block(VALUE self, VALUE regs, VALUE block, VALUE refs)
   VALUE sym_text = ID2SYM(rb_intern("text"));
   VALUE btype = rb_hash_aref(regs, ID2SYM(rb_intern("type")));
   block = rb_funcall(block, rb_intern("strip"), 0);
-  if ((RSTRING_LEN(block) > 0) && !NIL_P(btype))
+  if ((!NIL_P(block)) && !NIL_P(btype))
   {
     method = rb_intern(RSTRING_PTR(btype));
     if (method == rb_intern("notextile")) {
diff --git a/ext/redcloth_scan/redcloth_scan.rl b/ext/redcloth_scan/redcloth_scan.rl
index bde01673..c00f682d 100644
--- a/ext/redcloth_scan/redcloth_scan.rl
+++ b/ext/redcloth_scan/redcloth_scan.rl
@@ -296,7 +296,7 @@ int SYM_escape_preformatted, SYM_escape_attributes;
   dl := |*
     LF dt_start     { ADD_BLOCK(); ASET(type, dt); };
     dd_start        { ADD_BLOCK(); ASET(type, dd); };
-    long_dd         { INLINE(html, dd); };
+    long_dd         { INLINE(html, dd); CLEAR_REGS(); };
     block_end       { ADD_BLOCK(); INLINE(html, dl_close);  fgoto main; };
     default => cat;
   *|;
diff --git a/test/html.yml b/test/html.yml
index 77e951c3..085a7379 100644
--- a/test/html.yml
+++ b/test/html.yml
@@ -296,4 +296,10 @@ html: |-
 ---
 name: tilde in innerHTML is not altered
 in: '<a href="http://foo.com/bar?something=1~2~3">http://foo.com/bar?something=1~2~3</a>'
-html: '<p><a href="http://foo.com/bar?something=1~2~3">http://foo.com/bar?something=1~2~3</a></p>'
\ No newline at end of file
+html: '<p><a href="http://foo.com/bar?something=1~2~3">http://foo.com/bar?something=1~2~3</a></p>'
+---
+name: empty block
+in: |-
+  <embed src="test.swf"></embed>
+html: |-
+  <embed src="test.swf"></embed>