remove --recursive flag from git submodule update

diff --git a/rules.mk b/rules.mk
index d993404ab543a603e688c3e13e57ee8eea65d686..f0979f3fd762010085633865965130bcd6c60369 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -23,7 +23,7 @@ $(BUILD)/$(BIN).uf2: $(BUILD)/$(BIN).bin
        @$(UF2) $^ -co $@
 
 $(SUBMODULES):
-       git submodule update --init --recursive
+       git submodule update --init
 
 install:
        @$(UF2) -D $(BUILD)/$(BIN).uf2