diff --git a/makefile b/makefile
index 32c51ad..f131024 100644
--- a/makefile
+++ b/makefile
@@ -6,3 +6,4 @@ all:
 	cd examples/03_gcc_nested_function && make && echo
 	cd examples/04_sample_from_cdf_simple && make && echo
 	cd examples/05_sample_from_cdf_beta && make && echo
+	cd examples/06_gamma_beta && make && echo