diff --git a/Makefile.include b/Makefile.include
index d4853f570c696c36824bb6d97da09e0f5957ee61..6eaa239fff0a8b8ceeccd687affc9c0bf7bdc648 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -19,7 +19,7 @@ $(error This application only runs on following boards: $(BOARD_WHITELIST))
 		endif
 	endif
 
-	ifneq (,$(findstring $(BOARD),$(BOARD_BLACKLIST)))
+	ifneq (,$(filter $(BOARD),$(BOARD_BLACKLIST)))
 $(error This application does not run on following boards: $(BOARD_BLACKLIST))
 	endif
 endif