diff --git a/src/gallium/auxiliary/Android.mk b/src/gallium/auxiliary/Android.mk
index 664742ff48d..8ce58a3a9b6 100644
--- a/src/gallium/auxiliary/Android.mk
+++ b/src/gallium/auxiliary/Android.mk
@@ -64,13 +64,19 @@ LOCAL_MODULE_CLASS := STATIC_LIBRARIES
 intermediates := $(call local-generated-sources-dir)
 LOCAL_GENERATED_SOURCES := $(addprefix $(intermediates)/, $(GENERATED_SOURCES))
 
-$(LOCAL_GENERATED_SOURCES): PRIVATE_PYTHON := $(MESA_PYTHON2)
-$(LOCAL_GENERATED_SOURCES): PRIVATE_CUSTOM_TOOL = $(PRIVATE_PYTHON) $^ > $@
+u_indices_gen_deps := \
+	$(MESA_TOP)/src/gallium/auxiliary/indices/u_indices_gen.py
 
-$(intermediates)/indices/u_indices_gen.c \
-$(intermediates)/indices/u_unfilled_gen.c \
-$(intermediates)/util/u_format_srgb.c: $(intermediates)/%.c: $(LOCAL_PATH)/%.py
-	$(transform-generated-source)
+$(intermediates)/indices/u_indices_gen.c: $(u_indices_gen_deps)
+	@mkdir -p $(dir $@)
+	$(hide) $(MESA_PYTHON3) $< > $@
+
+u_unfilled_gen_deps := \
+	$(MESA_TOP)/src/gallium/auxiliary/indices/u_unfilled_gen.py
+
+$(intermediates)/indices/u_unfilled_gen.c: $(u_unfilled_gen_deps)
+	@mkdir -p $(dir $@)
+	$(hide) $(MESA_PYTHON3) $< > $@
 
 LOCAL_GENERATED_SOURCES += $(MESA_GEN_NIR_H)