diff --git a/browser/resources/extensions/BUILD.gn b/browser/resources/extensions/BUILD.gn
index 45605475d8f3..8693d25ef5c5 100644
--- a/browser/resources/extensions/BUILD.gn
+++ b/browser/resources/extensions/BUILD.gn
@@ -7,7 +7,7 @@ grit("resources") {
   source = "extensions_resources.grd"
 
   # The .grd contains references to generated files.
-  source_is_generated = true
+  enable_input_discovery_for_gn_analyze = true
   grit_flags = [
     "-E",
     "root_gen_dir=" + rebase_path(root_gen_dir, root_build_dir),
diff --git a/browser/resources/settings/BUILD.gn b/browser/resources/settings/BUILD.gn
index 3cda4e79901b..6963c91b82bb 100644
--- a/browser/resources/settings/BUILD.gn
+++ b/browser/resources/settings/BUILD.gn
@@ -14,7 +14,7 @@ grit("resources") {
     "enable_brave_wayback_machine=$enable_brave_wayback_machine",
   ]
 
-  source_is_generated = optimize_webui
+  enable_input_discovery_for_gn_analyze = optimize_webui
 
   outputs = [
     "grit/brave_settings_resources.h",
diff --git a/components/common/typescript.gni b/components/common/typescript.gni
index adaa0243285c..d17db63d3022 100644
--- a/components/common/typescript.gni
+++ b/components/common/typescript.gni
@@ -177,7 +177,7 @@ template("pack_web_resources") {
       generated_dir = "$root_gen_dir/brave/web-ui-$resource_name"
     }
     source = "$generated_dir/$resource_name.grd"
-    source_is_generated = true
+    enable_input_discovery_for_gn_analyze = true
 
     outputs = [
       "grit/$resource_name" + "_generated.h",
diff --git a/ui/webui/resources/BUILD.gn b/ui/webui/resources/BUILD.gn
index e99bb37bc1b7..88be18ce3cf9 100644
--- a/ui/webui/resources/BUILD.gn
+++ b/ui/webui/resources/BUILD.gn
@@ -9,7 +9,7 @@ grit("resources") {
   deps = [ ":modulize" ]
 
   # The .grd contains references to generated files.
-  source_is_generated = true
+  enable_input_discovery_for_gn_analyze = true
 
   outputs = [
     "grit/brave_webui_resources.h",