diff --git a/src/widgets/button/OpenQuizButton.tsx b/src/widgets/button/OpenQuizButton.tsx
index 72cc093..aac0186 100644
--- a/src/widgets/button/OpenQuizButton.tsx
+++ b/src/widgets/button/OpenQuizButton.tsx
@@ -14,9 +14,9 @@ interface Props {
     fixedSide?: "left" | "right";
     dimensions?: { width: string; height: string; };
     /**
-     * Открыть квиз через X секунд
+     * Открыть квиз через X секунд, 0 - сразу
      */
-    autoShowQuizTime?: number;
+    autoShowQuizTime?: number | null;
     hideOnMobile?: boolean;
     openOnLeaveAttempt?: boolean;
     buttonFlash?: boolean;
@@ -30,7 +30,7 @@ interface Props {
 export default function OpenQuizButton({
     quizId,
     fixedSide,
-    autoShowQuizTime = 0,
+    autoShowQuizTime = null,
     dimensions,
     hideOnMobile,
     openOnLeaveAttempt,
@@ -49,7 +49,7 @@ export default function OpenQuizButton({
     const preventOpenOnLeaveAttemptRef = useRef<boolean>(false);
 
     useEffect(function setAutoShowQuizTimer() {
-        if (!autoShowQuizTime || openOnLeaveAttempt) return;
+        if (autoShowQuizTime === null || openOnLeaveAttempt) return;
 
         const timeout = setTimeout(() => {
             setIsQuizShown(true);
diff --git a/src/widgets/popup/QuizPopup.tsx b/src/widgets/popup/QuizPopup.tsx
index f824328..068068e 100644
--- a/src/widgets/popup/QuizPopup.tsx
+++ b/src/widgets/popup/QuizPopup.tsx
@@ -11,9 +11,9 @@ interface Props {
     quizId: string;
     dimensions?: { width: string; height: string; };
     /**
-     * Открыть квиз через X секунд
+     * Открыть квиз через X секунд, 0 - сразу
      */
-    autoShowQuizTime?: number;
+    autoShowQuizTime?: number | null;
     hideOnMobile?: boolean;
     openOnLeaveAttempt?: boolean;
 }
@@ -21,11 +21,11 @@ interface Props {
 export default function QuizPopup({
     quizId,
     dimensions,
-    autoShowQuizTime = 0,
+    autoShowQuizTime = null,
     hideOnMobile = false,
     openOnLeaveAttempt = false,
 }: Props) {
-    const initialIsQuizShown = (autoShowQuizTime || openOnLeaveAttempt) ? false : true;
+    const initialIsQuizShown = (autoShowQuizTime !== null || openOnLeaveAttempt) ? false : true;
 
     const [isQuizShown, setIsQuizShown] = useState<boolean>(initialIsQuizShown);
     const isQuizCompleted = useQuizCompletionStatus(quizId);
@@ -33,7 +33,7 @@ export default function QuizPopup({
     const preventOpenOnLeaveAttemptRef = useRef<boolean>(false);
 
     useEffect(function setAutoShowQuizTimer() {
-        if (!autoShowQuizTime || openOnLeaveAttempt) return;
+        if (autoShowQuizTime === null || openOnLeaveAttempt) return;
 
         const timeout = setTimeout(() => {
             setIsQuizShown(true);
diff --git a/src/widgets/side/QuizSideButton.tsx b/src/widgets/side/QuizSideButton.tsx
index 3e14cee..6ad6fe2 100644
--- a/src/widgets/side/QuizSideButton.tsx
+++ b/src/widgets/side/QuizSideButton.tsx
@@ -25,9 +25,9 @@ interface Props {
      */
     autoOpenTime?: number;
     /**
-     * Открыть квиз через X секунд
+     * Открыть квиз через X секунд, 0 - сразу
      */
-    autoShowQuizTime?: number;
+    autoShowQuizTime?: number | null;
     hideOnMobile?: boolean;
 }
 
@@ -40,7 +40,7 @@ export default function QuizSideButton({
     fullScreen = false,
     buttonFlash = false,
     autoOpenTime = 0,
-    autoShowQuizTime = 0,
+    autoShowQuizTime = null,
     hideOnMobile = false,
 }: Props) {
     const [isQuizShown, setIsQuizShown] = useState<boolean>(false);
@@ -51,7 +51,7 @@ export default function QuizSideButton({
     const preventQuizAutoShowRef = useRef<boolean>(false);
 
     useEffect(function setAutoShowQuizTimer() {
-        if (!autoShowQuizTime) return;
+        if (autoShowQuizTime === null) return;
 
         const timeout = setTimeout(() => {
             if (!preventQuizAutoShowRef.current) setIsQuizShown(true);