diff --git a/app/components/elements/Radio.tsx b/app/components/elements/Radio.tsx
index 7c74d6447..6b2b72e8d 100644
--- a/app/components/elements/Radio.tsx
+++ b/app/components/elements/Radio.tsx
@@ -18,6 +18,7 @@ export function SendouRadioGroup({
 	isDisabled,
 	className,
 	"aria-label": ariaLabel,
+	onMouseDown,
 	children,
 }: {
 	value: string | null;
@@ -25,12 +26,18 @@ export function SendouRadioGroup({
 	isDisabled?: boolean;
 	className?: string;
 	"aria-label"?: string;
+	onMouseDown?: (e: React.MouseEvent) => void;
 	children: React.ReactNode;
 }) {
 	const name = React.useId();
 
 	return (
-		<div role="radiogroup" aria-label={ariaLabel} className={className}>
+		<div
+			role="radiogroup"
+			aria-label={ariaLabel}
+			className={className}
+			onMouseDown={onMouseDown}
+		>
 			<RadioGroupContext value={{ name, value, isDisabled, onChange }}>
 				{children}
 			</RadioGroupContext>
diff --git a/app/components/layout/GlobalSearch.tsx b/app/components/layout/GlobalSearch.tsx
index 8fe861640..5dd168e68 100644
--- a/app/components/layout/GlobalSearch.tsx
+++ b/app/components/layout/GlobalSearch.tsx
@@ -343,6 +343,7 @@ function GlobalSearchContent({
 					onChange={handleSearchTypeChange}
 					aria-label="Search type"
 					className={styles.searchTypeRadioGroup}
+					onMouseDown={preventFocusLeavingInput}
 				>
 					{SEARCH_TYPES.map((type) => (
 						<SendouRadio
@@ -418,6 +419,10 @@ function GlobalSearchContent({
 	);
 }
 
+function preventFocusLeavingInput(e: React.MouseEvent) {
+	e.preventDefault();
+}
+
 type SearchResult = NonNullable<SearchLoaderData>["results"][number];
 
 function getResultKey(result: SearchResult): string {
diff --git a/changelog/2026-09-23-global-search-tab-flicker.md b/changelog/2026-09-23-global-search-tab-flicker.md
new file mode 100644
index 000000000..8571ea0e9
--- /dev/null
+++ b/changelog/2026-09-23-global-search-tab-flicker.md
@@ -0,0 +1,4 @@
+---
+type: bug
+---
+Switching tabs in search no longer makes the search field flicker