diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 9c02d6075b..0a977aecaa 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -21,6 +21,7 @@
         <module name="core-java-strings" />
         <module name="core-java" />
         <module name="core-java-11" />
+        <module name="core-java-collections-conversions" />
         <module name="core-java-collections-list-2" />
         <module name="core-java-collections" />
         <module name="core-java-datetime-conversion" />
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
index 20d0f1e3d8..dc58147bcb 100644
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -15,6 +15,8 @@
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-2/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-3/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-3/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-conversions/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-conversions/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-list-2/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-list-2/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/core-java-modules/core-java-collections-list-3/src/main/java" charset="UTF-8" />