1 files changed, 2 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index e2282df..5edda83 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,8 @@ GSL_FLAGS:=$(shell pkg-config --libs gsl)
 main: main.o rtnorm.o stratified_sampling.o
 	$(CXX) $^ -o $@ $(GSL_FLAGS)
 
+stratified_sampling.o: stratified_sampling.hpp
+
 test: test.o mt19937.o
 	$(CXX) $^ -o $@