diff --git a/proc/go_version.go b/proc/go_version.go
index 88a89b96..895f5ac1 100644
--- a/proc/go_version.go
+++ b/proc/go_version.go
@@ -33,11 +33,14 @@ func parseVersionString(ver string) (GoVersion, bool) {
 				vr = strings.SplitN(v[1], "rc", 2)
 				if len(vr) == 2 {
 					r.RC, err3 = strconv.Atoi(vr[1])
+				} else {
+					r.Minor, err2 = strconv.Atoi(v[1])
+					if err2 != nil {
+						return GoVersion{}, false
+					}
+					return r, true
 				}
 			}
-			if len(vr) < 2 {
-				return GoVersion{}, false
-			}
 
 			r.Minor, err2 = strconv.Atoi(vr[0])
 			r.Rev = -1
diff --git a/proc/proc_test.go b/proc/proc_test.go
index 049d5cce..1feae022 100644
--- a/proc/proc_test.go
+++ b/proc/proc_test.go
@@ -668,6 +668,7 @@ func versionAfterOrEqual(t *testing.T, verStr string, ver GoVersion) {
 }
 
 func TestParseVersionString(t *testing.T) {
+	versionAfterOrEqual(t, "go1.4", GoVersion{1, 4, 0, 0, 0})
 	versionAfterOrEqual(t, "go1.5.0", GoVersion{1, 5, 0, 0, 0})
 	versionAfterOrEqual(t, "go1.4.2", GoVersion{1, 4, 2, 0, 0})
 	versionAfterOrEqual(t, "go1.5beta2", GoVersion{1, 5, -1, 2, 0})