diff --git a/cmd/version.go b/cmd/version.go
index c67afe3..7b8f431 100644
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -15,7 +15,7 @@ var versionCmd = &cobra.Command{
 	Short: "Print the version number of commonmeta",
 	Long:  `All software has versions. This is commonmeta's`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("Commonmeta v0.2.1 -- HEAD")
+		fmt.Println("Commonmeta v0.2.2 -- HEAD")
 	},
 }
 
diff --git a/doiutils/doiutils.go b/doiutils/doiutils.go
index 45e07e3..14cf7bb 100644
--- a/doiutils/doiutils.go
+++ b/doiutils/doiutils.go
@@ -51,7 +51,7 @@ func ValidateDOI(doi string) (string, bool) {
 
 // ValidatePrefix validates a DOI prefix for a given DOI
 func ValidatePrefix(doi string) (string, bool) {
-	r, err := regexp.Compile(`^(?:(http|https):/(/)?(dx\.)?(doi\.org|handle\.stage\.datacite\.org|handle\.test\.datacite\.org)/)?(doi:)?(10\.\d{4,5})/.+$`)
+	r, err := regexp.Compile(`^(?:(http|https):/(/)?(dx\.)?(doi\.org|handle\.stage\.datacite\.org|handle\.test\.datacite\.org)/)?(doi:)?(10\.\d{4,5})`)
 	if err != nil {
 		log.Printf("Error compiling regex: %v", err)
 		return "", false
@@ -75,7 +75,7 @@ func DOIResolver(doi string, sandbox bool) string {
 	return "https://doi.org/"
 }
 
-// GetDOIRA returns the DOI registration agency for a given DOI
+// GetDOIRA returns the DOI registration agency for a given DOI or prefix
 func GetDOIRA(doi string) (string, bool) {
 	prefix, ok := ValidatePrefix(doi)
 	if !ok {
diff --git a/doiutils/doiutils_test.go b/doiutils/doiutils_test.go
index a5e9109..3240d58 100644
--- a/doiutils/doiutils_test.go
+++ b/doiutils/doiutils_test.go
@@ -37,14 +37,14 @@ func TestValidatePrefix(t *testing.T) {
 	testCases := []testCase{
 		{input: "10.7554/elife.01567", want: "10.7554"},
 		{input: "https://doi.org/10.7554/elife.01567", want: "10.7554"},
-		{input: "https://doi.org/10.7554", want: ""},
-		{input: "10.7554", want: ""},
+		{input: "https://doi.org/10.7554", want: "10.7554"},
+		{input: "10.7554", want: "10.7554"},
 		{input: "", want: ""},
 	}
 	for _, tc := range testCases {
 		got, ok := doiutils.ValidatePrefix(tc.input)
 		if tc.want != got {
-			t.Errorf("Validate DOI(%v): want %v, got %v, ok %v",
+			t.Errorf("Validate Prefix (%v): want %v, got %v, ok %v",
 				tc.input, tc.want, got, ok)
 		}
 	}
@@ -82,6 +82,7 @@ func TestGetDOIRA(t *testing.T) {
 		{input: "10.7554/elife.01567", want: "Crossref"},
 		{input: "https://doi.org/10.5061/dryad.8515", want: "DataCite"},
 		{input: "10.9999", want: ""},
+		{input: "10.7554", want: "Crossref"},
 		{input: "", want: ""},
 	}
 	for _, tc := range testCases {