diff --git a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README.md b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README.md
index 5d91e3902b136..5257da0353609 100644
--- a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README.md	
+++ b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README.md	
@@ -139,7 +139,7 @@ function minLength(s: string): number {
     for (const c of s) {
         if (c === 'B' && stk[stk.length - 1] === 'A') {
             stk.pop();
-        } else if (c == 'D' && stk[stk.length - 1] === 'C') {
+        } else if (c === 'D' && stk[stk.length - 1] === 'C') {
             stk.pop();
         } else {
             stk.push(c);
diff --git a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README_EN.md b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README_EN.md
index ed9cd08055062..d907ad41ad2f9 100644
--- a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README_EN.md	
+++ b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/README_EN.md	
@@ -121,7 +121,7 @@ function minLength(s: string): number {
     for (const c of s) {
         if (c === 'B' && stk[stk.length - 1] === 'A') {
             stk.pop();
-        } else if (c == 'D' && stk[stk.length - 1] === 'C') {
+        } else if (c === 'D' && stk[stk.length - 1] === 'C') {
             stk.pop();
         } else {
             stk.push(c);
diff --git a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/Solution.ts b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/Solution.ts
index 8f22860a6e9bc..cd1e5c6817c42 100644
--- a/solution/2600-2699/2696.Minimum String Length After Removing Substrings/Solution.ts	
+++ b/solution/2600-2699/2696.Minimum String Length After Removing Substrings/Solution.ts	
@@ -3,7 +3,7 @@ function minLength(s: string): number {
     for (const c of s) {
         if (c === 'B' && stk[stk.length - 1] === 'A') {
             stk.pop();
-        } else if (c == 'D' && stk[stk.length - 1] === 'C') {
+        } else if (c === 'D' && stk[stk.length - 1] === 'C') {
             stk.pop();
         } else {
             stk.push(c);