diff --git a/Lecture-055/07_Redundant_Brackets.cpp b/Lecture-055/07_Redundant_Brackets.cpp
index d909b8d..1297830 100644
--- a/Lecture-055/07_Redundant_Brackets.cpp
+++ b/Lecture-055/07_Redundant_Brackets.cpp
@@ -8,7 +8,7 @@ bool redundantBracket(string str) {
         bool redundancy = true;
         char ch = str[i];
 
-        if(ch=='(' || ch=='+' || ch=='-' || ch=='-' || ch=='/') {
+        if(ch=='(' || ch=='+' || ch=='-' || ch=='*' || ch=='/') {
             st.push(ch);
         } else {
 
@@ -16,7 +16,7 @@ bool redundantBracket(string str) {
 
                 while(st.top() != '(') {
                     char top = st.top();
-                    if(top=='+' || top=='-' || top=='-' || top=='/') {
+                    if(top=='+' || top=='-' || top=='*' || top=='/') {
                         redundancy = false;
                     }
                     st.pop();
@@ -49,4 +49,4 @@ int main() {
     }
 
     return 0;
-}
\ No newline at end of file
+}