diff --git a/Makefile b/Makefile
index 6127190..1c0b3ee 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ debug:
 	$(n) $(n_args) $(d_folder)
 
 release:
-	if [ ! -d "$(d_folder)" ]; then mkdir -pv $(d_folder); fi
+	if [ ! -d "$(r_folder)" ]; then mkdir -pv $(r_folder); fi
 	$(c) $(c_args)Release -B $(r_folder) $(cpp_flags) && \
 	$(n) $(n_args) $(r_folder)