diff --git a/src/main/java/com/evolveum/polygon/connector/grouper/rest/Processor.java b/src/main/java/com/evolveum/polygon/connector/grouper/rest/Processor.java
index f41c7b9..78ff601 100644
--- a/src/main/java/com/evolveum/polygon/connector/grouper/rest/Processor.java
+++ b/src/main/java/com/evolveum/polygon/connector/grouper/rest/Processor.java
@@ -465,12 +465,13 @@ void throwNullAttrException(Filter query) {
 
 	// create uri from base host:
 	URIBuilder getURIBuilder() {
-		String baseHost = configuration.getBaseUrl();
-		URIBuilder uri = new URIBuilder();
-		uri.setScheme("https");
-		uri.setHost(baseHost);
-		uri.setPath(URI_BASE_PATH);
-		return uri;
+		try {
+			URIBuilder uri = new URIBuilder(configuration.getBaseUrl());
+			uri.setPath(URI_BASE_PATH);
+			return uri;
+		} catch (URISyntaxException e) {
+			throw new IllegalStateException(e.getMessage(), e);     // todo
+		}
 	}
 
 	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/src/test/java/com/evolveum/polygon/connector/grouper/test/GrouperTestHelper.java b/src/test/java/com/evolveum/polygon/connector/grouper/test/GrouperTestHelper.java
index f9e6482..219e205 100644
--- a/src/test/java/com/evolveum/polygon/connector/grouper/test/GrouperTestHelper.java
+++ b/src/test/java/com/evolveum/polygon/connector/grouper/test/GrouperTestHelper.java
@@ -32,7 +32,7 @@
  */
 public class GrouperTestHelper {
 	
-	private static final String BASE_URL = "192.168.56.101:9443";
+	private static final String BASE_URL = "https://192.168.56.101:9443";
 	private static final String ADMIN_USERNAME = "banderson";
 	private static final String ADMIN_PASSWORD = "password";
 	private static final String SUPER_GROUP = "etc:sysadmingroup";