diff --git a/src/main/java/dasniko/testcontainers/keycloak/ExtendableKeycloakContainer.java b/src/main/java/dasniko/testcontainers/keycloak/ExtendableKeycloakContainer.java
index 4d7860e..c20d25e 100644
--- a/src/main/java/dasniko/testcontainers/keycloak/ExtendableKeycloakContainer.java
+++ b/src/main/java/dasniko/testcontainers/keycloak/ExtendableKeycloakContainer.java
@@ -191,7 +191,7 @@ protected void configure() {
             for (String importFile : importFiles) {
                 // TODO: a strategy for files with the same name but in the different dirs
                 String importFileInContainer = DEFAULT_REALM_IMPORT_FILES_LOCATION + FilenameUtils.getName(importFile);
-                withCopyFileToContainer(MountableFile.forClasspathResource(importFile), importFileInContainer);
+                withCopyFileToContainer(MountableFile.forClasspathResource(importFile, 0644), importFileInContainer);
             }
         }