diff --git a/core/soong_config.mk b/core/soong_config.mk
index c62086f..5a6874d 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -34,7 +34,7 @@
 
 $(call add_json_str,  Platform_min_supported_target_sdk_version, $(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION))
 
-$(call add_json_bool, Allow_missing_dependencies,        $(ALLOW_MISSING_DEPENDENCIES))
+$(call add_json_bool, Allow_missing_dependencies,        $(filter true,$(ALLOW_MISSING_DEPENDENCIES)))
 $(call add_json_bool, Unbundled_build,                   $(TARGET_BUILD_UNBUNDLED))
 $(call add_json_bool, Unbundled_build_apps,              $(TARGET_BUILD_APPS))
 $(call add_json_bool, Always_use_prebuilt_sdks,          $(TARGET_BUILD_USE_PREBUILT_SDKS))
@@ -210,7 +210,7 @@
 $(call add_json_list, PackageNameOverrides,              $(PRODUCT_PACKAGE_NAME_OVERRIDES))
 $(call add_json_list, CertificateOverrides,              $(PRODUCT_CERTIFICATE_OVERRIDES))
 
-$(call add_json_bool, EnforceSystemCertificate,          $(ENFORCE_SYSTEM_CERTIFICATE))
+$(call add_json_bool, EnforceSystemCertificate,          $(filter true,$(ENFORCE_SYSTEM_CERTIFICATE)))
 $(call add_json_list, EnforceSystemCertificateAllowList, $(ENFORCE_SYSTEM_CERTIFICATE_ALLOW_LIST))
 
 $(call add_json_list, ProductHiddenAPIStubs,             $(PRODUCT_HIDDENAPI_STUBS))
@@ -232,33 +232,33 @@
   $(call end_json_map))
 $(call end_json_map)
 
-$(call add_json_bool, EnforceProductPartitionInterface,  $(PRODUCT_ENFORCE_PRODUCT_PARTITION_INTERFACE))
+$(call add_json_bool, EnforceProductPartitionInterface,  $(filter true,$(PRODUCT_ENFORCE_PRODUCT_PARTITION_INTERFACE)))
 $(call add_json_str,  DeviceCurrentApiLevelForVendorModules,  $(BOARD_CURRENT_API_LEVEL_FOR_VENDOR_MODULES))
 
-$(call add_json_bool, EnforceInterPartitionJavaSdkLibrary, $(PRODUCT_ENFORCE_INTER_PARTITION_JAVA_SDK_LIBRARY))
+$(call add_json_bool, EnforceInterPartitionJavaSdkLibrary, $(filter true,$(PRODUCT_ENFORCE_INTER_PARTITION_JAVA_SDK_LIBRARY)))
 $(call add_json_list, InterPartitionJavaLibraryAllowList, $(PRODUCT_INTER_PARTITION_JAVA_LIBRARY_ALLOWLIST))
 
 $(call add_json_bool, InstallExtraFlattenedApexes, $(PRODUCT_INSTALL_EXTRA_FLATTENED_APEXES))
 
 $(call add_json_bool, CompressedApex, $(PRODUCT_COMPRESSED_APEX))
 
-$(call add_json_bool, BoardUsesRecoveryAsBoot, $(BOARD_USES_RECOVERY_AS_BOOT))
+$(call add_json_bool, BoardUsesRecoveryAsBoot, $(filter true,$(BOARD_USES_RECOVERY_AS_BOOT)))
 
 $(call add_json_list, BoardKernelBinaries, $(BOARD_KERNEL_BINARIES))
 $(call add_json_list, BoardKernelModuleInterfaceVersions, $(BOARD_KERNEL_MODULE_INTERFACE_VERSIONS))
 
-$(call add_json_bool, BoardMoveRecoveryResourcesToVendorBoot, $(BOARD_MOVE_RECOVERY_RESOURCES_TO_VENDOR_BOOT))
+$(call add_json_bool, BoardMoveRecoveryResourcesToVendorBoot, $(filter true,$(BOARD_MOVE_RECOVERY_RESOURCES_TO_VENDOR_BOOT)))
 $(call add_json_str,  PrebuiltHiddenApiDir, $(BOARD_PREBUILT_HIDDENAPI_DIR))
 
 $(call add_json_str,  ShippingApiLevel, $(PRODUCT_SHIPPING_API_LEVEL))
 
-$(call add_json_bool, BuildBrokenEnforceSyspropOwner,     $(BUILD_BROKEN_ENFORCE_SYSPROP_OWNER))
-$(call add_json_bool, BuildBrokenTrebleSyspropNeverallow, $(BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW))
-$(call add_json_bool, BuildBrokenVendorPropertyNamespace, $(BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE))
+$(call add_json_bool, BuildBrokenEnforceSyspropOwner,     $(filter true,$(BUILD_BROKEN_ENFORCE_SYSPROP_OWNER)))
+$(call add_json_bool, BuildBrokenTrebleSyspropNeverallow, $(filter true,$(BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW)))
+$(call add_json_bool, BuildBrokenVendorPropertyNamespace, $(filter true,$(BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE)))
 
-$(call add_json_bool, RequiresInsecureExecmemForSwiftshader, $(PRODUCT_REQUIRES_INSECURE_EXECMEM_FOR_SWIFTSHADER))
+$(call add_json_bool, RequiresInsecureExecmemForSwiftshader, $(filter true,$(PRODUCT_REQUIRES_INSECURE_EXECMEM_FOR_SWIFTSHADER)))
 
-$(call add_json_bool, SelinuxIgnoreNeverallows, $(SELINUX_IGNORE_NEVERALLOWS))
+$(call add_json_bool, SelinuxIgnoreNeverallows, $(filter true,$(SELINUX_IGNORE_NEVERALLOWS)))
 
 $(call add_json_bool, SepolicySplit, $(filter true,$(PRODUCT_SEPOLICY_SPLIT)))