diff --git a/core-groovy-strings/README.md b/core-groovy-modules/core-groovy-strings/README.md
similarity index 100%
rename from core-groovy-strings/README.md
rename to core-groovy-modules/core-groovy-strings/README.md
diff --git a/core-groovy-strings/pom.xml b/core-groovy-modules/core-groovy-strings/pom.xml
similarity index 98%
rename from core-groovy-strings/pom.xml
rename to core-groovy-modules/core-groovy-strings/pom.xml
index 333b15cdbe..f6ad4d33cf 100644
--- a/core-groovy-strings/pom.xml
+++ b/core-groovy-modules/core-groovy-strings/pom.xml
@@ -10,7 +10,7 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>core-groovy-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/core-groovy-strings/src/test/groovy/com/baeldung/removeprefix/RemovePrefixTest.groovy b/core-groovy-modules/core-groovy-strings/src/test/groovy/com/baeldung/removeprefix/RemovePrefixTest.groovy
similarity index 100%
rename from core-groovy-strings/src/test/groovy/com/baeldung/removeprefix/RemovePrefixTest.groovy
rename to core-groovy-modules/core-groovy-strings/src/test/groovy/com/baeldung/removeprefix/RemovePrefixTest.groovy