diff --git a/pkg/apiclient/client_http.go b/pkg/apiclient/client_http.go
index 37285a64476..33b50b7e4b0 100644
--- a/pkg/apiclient/client_http.go
+++ b/pkg/apiclient/client_http.go
@@ -16,7 +16,7 @@ import (
 )
 
 func (c *ApiClient) NewRequest(method, url string, body interface{}) (*http.Request, error) {
-	if !strings.HasSuffix(c.BaseURL.Path, "/") && strings.HasPrefix(c.BaseURL.Path, "http") {
+	if !strings.HasSuffix(c.BaseURL.Path, "/") && (strings.HasPrefix(c.BaseURL.Path, "http") || strings.HasPrefix(c.BaseURL.Path, ":")) {
 		return nil, fmt.Errorf("BaseURL must have a trailing slash, but %q does not", c.BaseURL)
 	}