diff --git a/src/main/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnostic.java b/src/main/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnostic.java
index 725c1958979..01f128cfd1f 100644
--- a/src/main/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnostic.java
+++ b/src/main/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnostic.java
@@ -49,7 +49,8 @@
   severity = DiagnosticSeverity.MAJOR,
   modules = {
     ModuleType.CommonModule,
-    ModuleType.ObjectModule
+    ModuleType.ObjectModule,
+    ModuleType.UNKNOWN
   },
   minutesToFix = 1,
   tags = {
diff --git a/src/test/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnosticTest.java b/src/test/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnosticTest.java
index 681a61283e0..7f83fd580c3 100644
--- a/src/test/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnosticTest.java
+++ b/src/test/java/com/github/_1c_syntax/bsl/languageserver/diagnostics/UnusedLocalMethodDiagnosticTest.java
@@ -75,6 +75,12 @@ void testObjectModuleByDefault() {
     assertThat(diagnostics).isEmpty();
   }
 
+  @Test
+  void testUnknowModule() {
+    getModuleDocumentContext(ModuleType.UNKNOWN);
+    checkByDefault(getDiagnostics(documentContext));
+  }
+
   @Test
   void testConfigure() {
     // given
@@ -111,9 +117,13 @@ void testObjectModuleWithEnabledConfiguration() {
   }
 
   private void getObjectModuleDocumentContext() {
+    getModuleDocumentContext(ModuleType.ObjectModule);
+  }
+
+  private void getModuleDocumentContext(ModuleType moduleType) {
     Path testFile = Paths.get(PATH_TO_MODULE_CONTENT).toAbsolutePath();
     getDocumentContextFromFile(testFile);
-    when(documentContext.getModuleType()).thenReturn(ModuleType.ObjectModule);
+    when(documentContext.getModuleType()).thenReturn(moduleType);
     when(documentContext.getMdObject()).thenReturn(Optional.of(module));
   }