diff --git a/Makefile b/Makefile
index f0f0b1a..0a88041 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,9 @@ OBJECTS := $(patsubst $(SRCDIR)/%.cpp, $(OBJDIR)/%.o, $(SOURCES))
 BIN := $(BINDIR)/orbital_shipping
 
 
-all: mkdirs $(BIN)
+all: mkdirs $(BIN) tests
+	@# automatically run tests when (re-)compiling
+	@${TEST_BIN}
 .PHONY: all
 
 tests: $(TEST_BIN)