diff --git a/README.md b/README.md
index 6dc2d08..fbbc9e9 100644
--- a/README.md
+++ b/README.md
@@ -23,8 +23,8 @@ Java 11+ is supported.
 
 [**Gradle**](https://mvnrepository.com/artifact/io.goodforgod/graalvm-hint-processor)
 ```groovy
-annotationProcessor "io.goodforgod:graalvm-hint-processor:0.17.0"
-compilyOnly "io.goodforgod:graalvm-hint-annotations:0.17.0"
+annotationProcessor "io.goodforgod:graalvm-hint-processor:0.17.1"
+compilyOnly "io.goodforgod:graalvm-hint-annotations:0.17.1"
 ```
 
 [**Maven**](https://mvnrepository.com/artifact/io.goodforgod/graalvm-hint-processor)
@@ -33,14 +33,14 @@ compilyOnly "io.goodforgod:graalvm-hint-annotations:0.17.0"
     <dependency>
         <groupId>io.goodforgod</groupId>
         <artifactId>graalvm-hint-annotations</artifactId>
-        <version>0.17.0</version>
+        <version>0.17.1</version>
         <scope>compile</scope>
         <optional>true</optional>
     </dependency>
     <dependency>
         <groupId>io.goodforgod</groupId>
         <artifactId>graalvm-hint-processor</artifactId>
-        <version>0.17.0</version>
+        <version>0.17.1</version>
         <scope>provided</scope>
     </dependency>
 </dependencies>
@@ -58,7 +58,7 @@ compilyOnly "io.goodforgod:graalvm-hint-annotations:0.17.0"
                     <path>
                         <groupId>io.goodforgod</groupId>
                         <artifactId>graalvm-hint-processor</artifactId>
-                        <version>0.17.0</version>
+                        <version>0.17.1</version>
                     </path>
                 </annotationProcessorPaths>
             </configuration>
diff --git a/graalvm-hint-processor/build.gradle b/graalvm-hint-processor/build.gradle
index 9323d2c..df4f167 100644
--- a/graalvm-hint-processor/build.gradle
+++ b/graalvm-hint-processor/build.gradle
@@ -28,7 +28,7 @@ publishing {
             pom {
                 name = "GraalVM Hint Processor"
                 url = "https://github.com/GoodforGod/$artifactRootId"
-                description = "GraalVM Hint Processor helps generate GraalVM hints for building native-image applications"
+                description = "GraalVM Hint Processor that generates GraalVM configuration hints for native-image applications."
 
                 license {
                     name = "Apache License 2.0"
diff --git a/graalvm-hint-processor/src/main/java/io/goodforgod/graalvm/hint/processor/AbstractHintProcessor.java b/graalvm-hint-processor/src/main/java/io/goodforgod/graalvm/hint/processor/AbstractHintProcessor.java
index 8bcd570..3624d8b 100644
--- a/graalvm-hint-processor/src/main/java/io/goodforgod/graalvm/hint/processor/AbstractHintProcessor.java
+++ b/graalvm-hint-processor/src/main/java/io/goodforgod/graalvm/hint/processor/AbstractHintProcessor.java
@@ -139,23 +139,29 @@ private String getPackage(Element element) {
         final Element enclosingElement = element.getEnclosingElement();
         if (enclosingElement instanceof PackageElement) {
             final String typeName = ((PackageElement) enclosingElement).getQualifiedName().toString();
-            return (typeName.contains("."))
-                    ? typeName.substring(0, typeName.lastIndexOf('.'))
-                    : typeName;
-        } else {
-            return DEFAULT_GROUP;
+            // class without package declare: unnamed package
+            if (!typeName.isEmpty()) {
+                return (typeName.contains("."))
+                        ? typeName.substring(0, typeName.lastIndexOf('.'))
+                        : typeName;
+            }
         }
+
+        return DEFAULT_GROUP;
     }
 
     private String getArtifact(Element element) {
         final Element enclosingElement = element.getEnclosingElement();
         if (enclosingElement instanceof PackageElement) {
             final String typeName = ((PackageElement) enclosingElement).getQualifiedName().toString();
-            return (typeName.contains("."))
-                    ? typeName.substring(typeName.lastIndexOf('.') + 1)
-                    : DEFAULT_ARTIFACT;
-        } else {
-            return DEFAULT_ARTIFACT;
+            // class without package declare: unnamed package
+            if (!typeName.isEmpty()) {
+                return (typeName.contains("."))
+                        ? typeName.substring(typeName.lastIndexOf('.') + 1)
+                        : DEFAULT_ARTIFACT;
+            }
         }
+
+        return DEFAULT_ARTIFACT;
     }
 }
diff --git a/gradle.properties b/gradle.properties
index 5c81d0a..1938ec0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 groupId=io.goodforgod
 artifactRootId=graalvm-hint
-artifactVersion=0.17.0
+artifactVersion=0.17.1
 
 
 ##### GRADLE #####