diff --git a/_test/extra.txt b/_test/extra.txt
index b5246d3..a1e2c9a 100644
--- a/_test/extra.txt
+++ b/_test/extra.txt
@@ -526,3 +526,30 @@ _a[b_c_](d)
 <p>&lt;a\f&gt;</p>
 <p>&lt; p&gt;</p>
 //= = = = = = = = = = = = = = = = = = = = = = = =//
+
+41: Link references can not contain spaces after link label
+//- - - - - - - - -//
+[x]
+:>
+
+[o] :x
+//- - - - - - - - -//
+<p>[x]
+:&gt;</p>
+<p>[o] :x</p>
+//= = = = = = = = = = = = = = = = = = = = = = = =//
+
+
+42: Unclosed link reference titles can interrupt link references
+//- - - - - - - - -//
+[r]:
+<>
+'
+
+[o]:
+x
+'
+//- - - - - - - - -//
+<p>'</p>
+<p>'</p>
+//= = = = = = = = = = = = = = = = = = = = = = = =//
diff --git a/parser/link_ref.go b/parser/link_ref.go
index dd98ed1..ea3f654 100644
--- a/parser/link_ref.go
+++ b/parser/link_ref.go
@@ -84,7 +84,6 @@ func parseLinkReferenceDefinition(block text.Reader, pc Context) (int, int) {
 	if util.IsBlank(label) {
 		return -1, -1
 	}
-	block.SkipSpaces()
 	if block.Peek() != ':' {
 		return -1, -1
 	}
@@ -123,7 +122,8 @@ func parseLinkReferenceDefinition(block text.Reader, pc Context) (int, int) {
 		}
 		ref := NewReference(label, destination, nil)
 		pc.AddReference(ref)
-		return startLine, endLine
+		block.AdvanceLine()
+		return startLine, endLine + 1
 	}
 	var title []byte
 	if segments.Len() == 1 {