diff --git a/drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/KieBuilderImpl.java b/drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/KieBuilderImpl.java
index 2a6394d285cf..bb6f45dba368 100644
--- a/drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/KieBuilderImpl.java
+++ b/drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/KieBuilderImpl.java
@@ -378,18 +378,13 @@ private static boolean isFileInKieBase( KieBaseModel kieBase, String fileName, S
             return true;
         } else {
             String folderNameForFile = lastSep > 0 ? fileName.substring( 0, lastSep ) : "";
-            int resourcesPos = folderNameForFile.indexOf( RESOURCES_ROOT );
-            if (resourcesPos >= 0) {
-                folderNameForFile = folderNameForFile.substring( resourcesPos + RESOURCES_ROOT.length() );
-            }
             String pkgNameForFile = packageNameForFile( fileName, folderNameForFile, !useFolders, file );
             return isPackageInKieBase( kieBase, pkgNameForFile );
         }
     }
 
     private static String packageNameForFile( String fileName, String folderNameForFile, boolean discoverPackage, Supplier<InternalResource> file ) {
-        String packageNameFromFolder = folderNameForFile.replace( '/', '.' );
-
+        String packageNameFromFolder = getRelativePackageName(folderNameForFile.replace( '/', '.' ));
         if (discoverPackage) {
             String packageNameForFile = packageNameFromAsset(fileName, file.get());
             if (packageNameForFile != null) {