diff --git a/src/Kdyby/Translation/CatalogueCompiler.php b/src/Kdyby/Translation/CatalogueCompiler.php
index afbf1d51..f43298a1 100644
--- a/src/Kdyby/Translation/CatalogueCompiler.php
+++ b/src/Kdyby/Translation/CatalogueCompiler.php
@@ -128,7 +128,7 @@ protected function compilePhpCache(Translator $translator, array &$availableCata
 		$fallbackContent = '';
 		$current = new Code\PhpLiteral('');
 		foreach ($this->fallbackResolver->compute($translator, $locale) as $fallback) {
-			$fallbackSuffix = new Code\PhpLiteral(ucfirst(str_replace('-', '_', $fallback)));
+			$fallbackSuffix = new Code\PhpLiteral(ucfirst(str_replace('-', '_', Nette\Utils\Strings::webalize($fallback, NULL, FALSE))));
 
 			$fallbackContent .= Code\Helpers::format(<<<EOF
 \$catalogue? = new MessageCatalogue(?, ?);