diff --git a/tests/base64_test.cpp b/tests/base64_test.cpp
index 3fcb3af..6040c00 100644
--- a/tests/base64_test.cpp
+++ b/tests/base64_test.cpp
@@ -1,4 +1,4 @@
-#include "base64.h"
+#include <libcper/base64.h>
 
 #include "gtest/gtest.h"
 #include "gmock/gmock.h"