diff --git a/Makefile b/Makefile
index 6e67649..ff3c1c8 100644
--- a/Makefile
+++ b/Makefile
@@ -277,7 +277,7 @@ $(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
 	$(BIN) $< $@	
 	
 $(BUILD_DIR):
-	@mkdir build$@	
+	@mkdir $@	
 
 #######################################
 # clean up