diff --git a/examples/platform-specific/zoul/orion/client/Makefile b/examples/platform-specific/zoul/orion/client/Makefile
index 181bf3073..04667b18d 100644
--- a/examples/platform-specific/zoul/orion/client/Makefile
+++ b/examples/platform-specific/zoul/orion/client/Makefile
@@ -8,6 +8,7 @@ MODULES += os/net/app-layer/http-socket
 WITH_IP64 = 1
 
 PLATFORMS_ONLY = zoul
+BOARDS_ONLY = orion
 
 CONTIKI = ../../../../..
 include $(CONTIKI)/Makefile.include
diff --git a/examples/platform-specific/zoul/rev-b/Makefile b/examples/platform-specific/zoul/rev-b/Makefile
index aaa07051c..43d381c3f 100644
--- a/examples/platform-specific/zoul/rev-b/Makefile
+++ b/examples/platform-specific/zoul/rev-b/Makefile
@@ -5,6 +5,7 @@ BOARD ?= remote-revb
 all: $(CONTIKI_PROJECT)
 
 PLATFORMS_ONLY = zoul
+BOARDS_ONLY = remote-revb
 
 CONTIKI = ../../../..
 include $(CONTIKI)/Makefile.include