diff --git a/target/board/generic/BoardConfig.mk b/target/board/generic/BoardConfig.mk
index 9bf3c8b..70c78a8 100644
--- a/target/board/generic/BoardConfig.mk
+++ b/target/board/generic/BoardConfig.mk
@@ -69,6 +69,4 @@
 TARGET_NO_RECOVERY := true
 BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
 
-BOARD_VNDK_VERSION := current
-
-BUILD_BROKEN_DUP_RULES := false
+BOARD_VNDK_VERSION := current
\ No newline at end of file
diff --git a/target/board/generic_arm64/BoardConfig.mk b/target/board/generic_arm64/BoardConfig.mk
index dbdec90..be8ea39 100644
--- a/target/board/generic_arm64/BoardConfig.mk
+++ b/target/board/generic_arm64/BoardConfig.mk
@@ -101,5 +101,3 @@
 BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
 
 BOARD_VNDK_VERSION := current
-
-BUILD_BROKEN_DUP_RULES := false
diff --git a/target/board/generic_mips64/BoardConfig.mk b/target/board/generic_mips64/BoardConfig.mk
index fa4c355..2052d7b 100644
--- a/target/board/generic_mips64/BoardConfig.mk
+++ b/target/board/generic_mips64/BoardConfig.mk
@@ -91,5 +91,3 @@
 # Enable A/B update
 TARGET_NO_RECOVERY := true
 BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
-
-BUILD_BROKEN_DUP_RULES := false
diff --git a/target/board/generic_x86/BoardConfig.mk b/target/board/generic_x86/BoardConfig.mk
index 3760cc4..f71e72b 100644
--- a/target/board/generic_x86/BoardConfig.mk
+++ b/target/board/generic_x86/BoardConfig.mk
@@ -63,8 +63,6 @@
 
 BOARD_VNDK_VERSION := current
 
-BUILD_BROKEN_DUP_RULES := false
-
 # Enable A/B update
 TARGET_NO_RECOVERY := true
 BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
diff --git a/target/board/generic_x86_64/BoardConfig.mk b/target/board/generic_x86_64/BoardConfig.mk
index ec7a51e..a9c5142 100755
--- a/target/board/generic_x86_64/BoardConfig.mk
+++ b/target/board/generic_x86_64/BoardConfig.mk
@@ -65,5 +65,3 @@
 # Enable A/B update
 TARGET_NO_RECOVERY := true
 BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
-
-BUILD_BROKEN_DUP_RULES := false
diff --git a/target/board/treble_common.mk b/target/board/treble_common.mk
index 187022e..a8c9bc5 100644
--- a/target/board/treble_common.mk
+++ b/target/board/treble_common.mk
@@ -58,5 +58,3 @@
 $(error BOARD_AVB_ENABLE cannot be set for Treble GSI)
 endif
 BOARD_BUILD_DISABLED_VBMETAIMAGE := true
-
-BUILD_BROKEN_DUP_RULES := false