diff --git a/decode.go b/decode.go
index 587b6c6..25f4fbb 100644
--- a/decode.go
+++ b/decode.go
@@ -18,7 +18,12 @@ func GetVersion(s string) (version TcfVersion, err error) {
 		}
 	}()
 
-	b, err := base64.RawURLEncoding.DecodeString(s)
+	segments := strings.Split(s, ".")
+	if len(segments) == 0 {
+		return TcfVersionUndefined, err
+	}
+
+	b, err := base64.RawURLEncoding.DecodeString(segments[0])
 	if err != nil {
 		return TcfVersionUndefined, err
 	}
diff --git a/decode_test.go b/decode_test.go
index 99d34dd..5e15498 100644
--- a/decode_test.go
+++ b/decode_test.go
@@ -15,7 +15,7 @@ func TestGetVersion(t *testing.T) {
 		t.Errorf("Version should be %d", TcfVersion1)
 	}
 
-	version, err = GetVersion("COxR03kOxR1CqBcABCENAgCMAP_AAH_AAAqIF3EXySoGY2thI2YVFxBEIYwfJxyigMgChgQIsSwNQIeFLBoGLiAAHBGYJAQAGBAEEACBAQIkHGBMCQAAgAgBiRCMQEGMCzNIBIBAggEbY0FACCVmHkHSmZCY7064O__QLuIJEFQMAkSBAIACLECIQwAQDiAAAYAlAAABAhIaAAgIWBQEeAAAACAwAAgAAABBAAACAAQAAICIAAABAAAgAiAQAAAAGgIQAACBABACRIAAAEANCAAgiCEAQg4EAo4AAA")
+	version, err = GetVersion("COy7f9HOy7f_1BcABBENAjCoAPKAAFKAAAqIDaQCQABAAVAAyACAAFoANQAkgEdANoA2kAYAAQAFQAMgAgABaAbQAUMAQAAEABUADIAIAAWgBJgDCAMQA9ACEAEdAKuAXUAwIBhADRAG0FAEQABAAVAAyACAAFoANQAkwBhAGIAegBCACOgFXALqAYEAwgBogDaDACIAAgAKgAZABAAC0AGoASYAwgDEAPQAhABHQCrgF1AMCAYQA0QBtCABEAAQAFQAMgAgABaADUAJMAYQBiAHoAQgAjoBVwC6gGBAMIAaIA2hQAiAAIACoAGQAQAAtABqAEmAMIAxAD0AIQAR0Aq4BdQDAgGEANEAbQA.cAAACAAAAUg")
 	if err != nil {
 		t.Errorf("Version should be decoded without error: %s", err)
 		return