diff --git a/makefiles/app_dirs.inc.mk b/makefiles/app_dirs.inc.mk
index 6404b63894..d4a9bdd9d6 100644
--- a/makefiles/app_dirs.inc.mk
+++ b/makefiles/app_dirs.inc.mk
@@ -21,3 +21,5 @@ info-applications-supported-boards:
 	@for dir in $(APPLICATION_DIRS); do \
 	  make --no-print-directory -C $${dir} info-boards-supported 2>/dev/null | xargs -n 1 echo $${dir}; \
 	done
+# BOARDS values from 'boards.inc.mk' to only evaluate it once
+info-applications-supported-boards: export BOARDS ?=