diff --git a/ctrtool/deps/libnintendo-n3ds/makefile b/ctrtool/deps/libnintendo-n3ds/makefile
index 6584d99..0257804 100644
--- a/ctrtool/deps/libnintendo-n3ds/makefile
+++ b/ctrtool/deps/libnintendo-n3ds/makefile
@@ -11,7 +11,7 @@ PROJECT_SRC_PATH = src
 PROJECT_SRC_SUBDIRS = $(PROJECT_SRC_PATH)
 PROJECT_INCLUDE_PATH = include
 PROJECT_TESTSRC_PATH = test
-PROJECT_TESTSRC_SUBDIRS = $(PROJECT_TESTSRC_PATH)
+PROJECT_TESTSRC_SUBDIRS = $(PROJECT_TESTSRC_PATH) $(PROJECT_TESTSRC_PATH)/es
 PROJECT_BIN_PATH = bin
 PROJECT_DOCS_PATH = docs
 PROJECT_DOXYFILE_PATH = Doxyfile