diff --git a/src/asahi/vulkan/meson.build b/src/asahi/vulkan/meson.build
index c501fc6ab1c..7c7e2eb1d0d 100644
--- a/src/asahi/vulkan/meson.build
+++ b/src/asahi/vulkan/meson.build
@@ -122,7 +122,7 @@ asahi_icd = custom_target(
 )
 
 _dev_icdname = 'asahi_devenv_icd.@0@.json'.format(host_machine.cpu())
-custom_target(
+_dev_icd = custom_target(
   input : [vk_icd_gen, vk_api_xml],
   output : _dev_icdname,
   command : [
@@ -136,4 +136,4 @@ custom_target(
   build_by_default : true,
 )
 
-devenv.append('VK_DRIVER_FILES', meson.current_build_dir() / _dev_icdname)
+devenv.append('VK_DRIVER_FILES', _dev_icd.full_path())
diff --git a/src/nouveau/vulkan/meson.build b/src/nouveau/vulkan/meson.build
index e3fec2086c6..9ecfa1308a6 100644
--- a/src/nouveau/vulkan/meson.build
+++ b/src/nouveau/vulkan/meson.build
@@ -180,7 +180,7 @@ nouveau_icd = custom_target(
 )
 
 _dev_icdname = 'nouveau_devenv_icd.@0@.json'.format(host_machine.cpu())
-custom_target(
+_dev_icd = custom_target(
   'nouveau_devenv_icd',
   input : [vk_icd_gen, vk_api_xml],
   output : _dev_icdname,
@@ -195,7 +195,7 @@ custom_target(
   build_by_default : true,
 )
 
-devenv.append('VK_DRIVER_FILES', meson.current_build_dir() / _dev_icdname)
+devenv.append('VK_DRIVER_FILES', _dev_icd.full_path())
 
 if with_tests and not with_platform_android
   test(