diff --git a/internal/services/apimanagement/validate/api_management.go b/internal/services/apimanagement/validate/api_management.go
index 7888be4cdd31..e979bb92cba1 100644
--- a/internal/services/apimanagement/validate/api_management.go
+++ b/internal/services/apimanagement/validate/api_management.go
@@ -76,7 +76,7 @@ func ApiManagementApiName(v interface{}, k string) (ws []string, es []error) {
 func ApiManagementApiPath(v interface{}, k string) (ws []string, es []error) {
 	value := v.(string)
 
-	if matched := regexp.MustCompile(`^(?:|[\w.][\w-/.:]{0,398}[\w-])$`).Match([]byte(value)); !matched {
+	if matched := regexp.MustCompile(`^(?:|[\w]|[\w.][\w-/.:]{0,398}[\w-])$`).Match([]byte(value)); !matched {
 		es = append(es, fmt.Errorf("%q may only be up to 400 characters in length, not start or end with `/` and only contain valid url characters", k))
 	}
 	return ws, es
diff --git a/internal/services/apimanagement/validate/api_management_test.go b/internal/services/apimanagement/validate/api_management_test.go
index f8bbb7af021d..0a81d9e0411a 100644
--- a/internal/services/apimanagement/validate/api_management_test.go
+++ b/internal/services/apimanagement/validate/api_management_test.go
@@ -137,6 +137,10 @@ func TestAzureRMApiManagementApiPath_validation(t *testing.T) {
 			Value:    "api1:sub",
 			ErrCount: 0,
 		},
+		{
+			Value:    "a",
+			ErrCount: 0,
+		},
 		{
 			Value:    s.Repeat("x", 401),
 			ErrCount: 1,