diff --git a/core/cleanspec.mk b/core/cleanspec.mk
index d4a8eed..500ce54 100644
--- a/core/cleanspec.mk
+++ b/core/cleanspec.mk
@@ -64,6 +64,6 @@
 # ************************************************
 
 subdir_cleanspecs := \
-    $(shell build/tools/findleaves.py --prune=out --prune=.repo --prune=.git . CleanSpec.mk)
+    $(shell build/tools/findleaves.py --prune=$(OUT_DIR) --prune=.repo --prune=.git . CleanSpec.mk)
 include $(subdir_cleanspecs)
 subdir_cleanspecs :=
diff --git a/core/definitions.mk b/core/definitions.mk
index 7834baa..bf9901e 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -147,7 +147,7 @@
 # $(1): directory to search under
 # Ignores $(1)/Android.mk
 define first-makefiles-under
-$(shell build/tools/findleaves.py --prune=out --prune=.repo --prune=.git \
+$(shell build/tools/findleaves.py --prune=$(OUT_DIR) --prune=.repo --prune=.git \
         --mindepth=2 $(1) Android.mk)
 endef
 
diff --git a/core/main.mk b/core/main.mk
index 25ec74e..47847bf 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -479,7 +479,7 @@
 # Can't use first-makefiles-under here because
 # --mindepth=2 makes the prunes not work.
 subdir_makefiles := \
-	$(shell build/tools/findleaves.py --prune=out --prune=.repo --prune=.git $(subdirs) Android.mk)
+	$(shell build/tools/findleaves.py --prune=$(OUT_DIR) --prune=.repo --prune=.git $(subdirs) Android.mk)
 
 include $(subdir_makefiles)