diff --git a/impl/sf_bernina/Makefile b/impl/sf_bernina/Makefile
index 5600183..f105596 100644
--- a/impl/sf_bernina/Makefile
+++ b/impl/sf_bernina/Makefile
@@ -20,7 +20,7 @@ lib:
 all: build_dirs bernina_h5_writer
 
 debug: CPPFLAGS += -DDEBUG_OUTPUT -g
-debug: bernina
+debug: bernina_h5_writer
 
 bernina_h5_writer: $(OBJS)
 	$(CPP) $(LDFLAGS) -o $(BIN_DIR)/bernina_h5_writer $(OBJS) $(LDLIBS)