diff --git a/src/main/java/cz/cvut/kbss/study/config/SecurityConfig.java b/src/main/java/cz/cvut/kbss/study/config/SecurityConfig.java
index 72ce871d..15ff8ac4 100644
--- a/src/main/java/cz/cvut/kbss/study/config/SecurityConfig.java
+++ b/src/main/java/cz/cvut/kbss/study/config/SecurityConfig.java
@@ -117,6 +117,10 @@ private static void configureAllowedOrigins(CorsConfiguration corsConfig, Config
         if (!allowedOrigins.isEmpty()) {
             corsConfig.setAllowedOrigins(allowedOrigins);
             corsConfig.setAllowCredentials(true);
+            LOG.debug(
+                "Using response header Access-Control-Allow-Origin with value {}.",
+                corsConfig.getAllowedOrigins()
+            );
         }
     }