diff --git a/makefiles/app_dirs.inc.mk b/makefiles/app_dirs.inc.mk
index 37df195626..4179f99f90 100644
--- a/makefiles/app_dirs.inc.mk
+++ b/makefiles/app_dirs.inc.mk
@@ -15,6 +15,7 @@ APPLICATION_DIRS :=                   \
     examples                          \
     tests                             \
     tests/drivers                     \
+    tests/periph                      \
     tests/pkg                         \
     #