diff --git a/examples/icemulti/Makefile b/examples/icemulti/Makefile
index a7ce692..96b31e1 100644
--- a/examples/icemulti/Makefile
+++ b/examples/icemulti/Makefile
@@ -1,3 +1,5 @@
+all: config.bin
+
 prog: config.bin
 	sudo iceprog config.bin
 
diff --git a/examples/up5k_rgb/rgb.pcf b/examples/up5k_rgb/rgb.pcf
index 0954260..e390ba3 100644
--- a/examples/up5k_rgb/rgb.pcf
+++ b/examples/up5k_rgb/rgb.pcf
@@ -1,3 +1,4 @@
+set_frequency clk 32
 set_io RGB0 39
 set_io RGB1 40
 set_io RGB2 41