diff --git a/version/parsed.go b/version/parsed.go
index d38528b861..d571d1f71a 100644
--- a/version/parsed.go
+++ b/version/parsed.go
@@ -7,14 +7,16 @@ import (
 )
 
 var versionRE = regexp.MustCompile(`^(\d+)\.(\d+)\.(\d+)(.*)$`)
+var fetchRest = regexp.MustCompile(`^-(\d+)-?(.*)$`)
 
 // Parsed represents a SemVer-like version information.
 type Parsed struct {
-	Major int
-	Minor int
-	Patch int
-	Rest  string
-	Num   int // MMmmpp
+	Major   int
+	Minor   int
+	Patch   int
+	Rest    string
+	Num     int // MMmmpp
+	NumRest int
 }
 
 // Parse parses version information from given string.
@@ -36,6 +38,13 @@ func Parse(s string) (*Parsed, error) {
 		return nil, err
 	}
 
+	r := fetchRest.FindStringSubmatch(res.Rest)
+	if len(r) != 0 {
+		if res.NumRest, err = strconv.Atoi(r[1]); err != nil {
+			return nil, err
+		}
+	}
+
 	res.Num = res.Major*10000 + res.Minor*100 + res.Patch
 	return res, nil
 }
diff --git a/version/parsed_test.go b/version/parsed_test.go
index 5c371425ac..4af4711fc4 100644
--- a/version/parsed_test.go
+++ b/version/parsed_test.go
@@ -31,6 +31,9 @@ func TestParsed(t *testing.T) {
 			}, {
 				s: "3.0.0",
 				p: &Parsed{Major: 3, Minor: 0, Patch: 0, Num: 30000},
+			}, {
+				s: "4.0.0-12",
+				p: &Parsed{Major: 4, Minor: 0, Patch: 0, Rest: "-12", Num: 40000, NumRest: 12},
 			},
 		}
 		for i, expected := range data {
@@ -57,19 +60,19 @@ func TestParsed(t *testing.T) {
 		}{
 			{
 				s: "5.6.47-87.0-log",
-				p: &Parsed{Major: 5, Minor: 6, Patch: 47, Rest: "-87.0-log", Num: 50647},
+				p: &Parsed{Major: 5, Minor: 6, Patch: 47, Rest: "-87.0-log", Num: 50647, NumRest: 87},
 			}, {
 				s: "5.6.48-log",
 				p: &Parsed{Major: 5, Minor: 6, Patch: 48, Rest: "-log", Num: 50648},
 			}, {
 				s: "5.7.29-32-log",
-				p: &Parsed{Major: 5, Minor: 7, Patch: 29, Rest: "-32-log", Num: 50729},
+				p: &Parsed{Major: 5, Minor: 7, Patch: 29, Rest: "-32-log", Num: 50729, NumRest: 32},
 			}, {
 				s: "5.7.30-log",
 				p: &Parsed{Major: 5, Minor: 7, Patch: 30, Rest: "-log", Num: 50730},
 			}, {
 				s: "8.0.19-10",
-				p: &Parsed{Major: 8, Minor: 0, Patch: 19, Rest: "-10", Num: 80019},
+				p: &Parsed{Major: 8, Minor: 0, Patch: 19, Rest: "-10", Num: 80019, NumRest: 10},
 			}, {
 				s: "8.0.20",
 				p: &Parsed{Major: 8, Minor: 0, Patch: 20, Rest: "", Num: 80020},