diff --git a/eqwalizer/src/main/resources/application.conf b/eqwalizer/src/main/resources/application.conf
index b360996..ebf0576 100644
--- a/eqwalizer/src/main/resources/application.conf
+++ b/eqwalizer/src/main/resources/application.conf
@@ -16,7 +16,7 @@ eqwalizer {
     custom_maps_merge = ${?EQWALIZER_CUSTOM_MAPS_MERGE}
     ignored_overloaded_spec = false
     ignored_overloaded_spec = ${?EQWALIZER_IGNORED_OVERLOADED_SPEC}
-    overloaded_spec_domain_check = false
+    overloaded_spec_domain_check = true
     overloaded_spec_domain_check = ${?EQWALIZER_OVERLOADED_SPEC_DOMAIN_CHECK}
     report_dynamic_lambdas = false
     report_dynamic_lambdas = ${?EQWALIZER_REPORT_DYNAMIC_LAMBDAS}