diff --git a/modules/markup/html.go b/modules/markup/html.go
index f73221a37f..93c72fdcb4 100644
--- a/modules/markup/html.go
+++ b/modules/markup/html.go
@@ -48,7 +48,7 @@ var (
 	// hashCurrentPattern matches string that represents a commit SHA, e.g. d8a994ef243349f321568f9e36d5c3f444b99cae
 	// Although SHA1 hashes are 40 chars long, SHA256 are 64, the regex matches the hash from 7 to 64 chars in length
 	// so that abbreviated hash links can be used as well. This matches git and GitHub usability.
-	hashCurrentPattern = regexp.MustCompile(`(?:\s|^|\(|\[)([0-9a-f]{7,64})(?:\s|$|\)|\]|[.,](\s|$))`)
+	hashCurrentPattern = regexp.MustCompile(`(?:\s|^|\(|\[)([0-9a-f]{7,64})(?:\s|$|\)|\]|[.,:](\s|$))`)
 
 	// shortLinkPattern matches short but difficult to parse [[name|link|arg=test]] syntax
 	shortLinkPattern = regexp.MustCompile(`\[\[(.*?)\]\](\w*)`)
diff --git a/modules/markup/html_internal_test.go b/modules/markup/html_internal_test.go
index 917f280c73..18088af0ca 100644
--- a/modules/markup/html_internal_test.go
+++ b/modules/markup/html_internal_test.go
@@ -381,6 +381,7 @@ func TestRegExp_sha1CurrentPattern(t *testing.T) {
 		"(abcdefabcdefabcdefabcdefabcdefabcdefabcd)",
 		"[abcdefabcdefabcdefabcdefabcdefabcdefabcd]",
 		"abcdefabcdefabcdefabcdefabcdefabcdefabcd.",
+		"abcdefabcdefabcdefabcdefabcdefabcdefabcd:",
 	}
 	falseTestCases := []string{
 		"test",