diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 6706c60..3b4598a 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -7,6 +7,7 @@
             "command": "/usr/bin/gcc",
             "args": [
                 "-g",
+                "-Wall",
                 "main.c",
                 "-o",
                 "a.out"
@@ -23,6 +24,7 @@
             "command": "/usr/bin/gcc",
             "args": [
                 "-g",
+                "-Wall",
                 "main_logging.c",
                 "-o",
                 "a.out"
diff --git a/main.c b/main.c
index 933be2e..2a626ed 100644
--- a/main.c
+++ b/main.c
@@ -47,9 +47,11 @@ int LogCommandHistory(char* buf, char** command_log, int* n) {
     return 0;
 }
 
-void FreeCommandHistory(char** command_log, int n) {
-    for (int i = 0; i < n; i++) {
-        free(command_log[i]);
+void FreeCommandHistory(char** command_log) {
+    for (int i = 0; i < HISTORY_SIZE; i++) {
+        if (command_log[i] != NULL) {
+            free(command_log[i]);
+        }
     }
 }
 
@@ -270,6 +272,6 @@ int main() {
         }
     }
 
-    FreeCommandHistory(command_log, n);
+    FreeCommandHistory(command_log);
     return 0;
 }
\ No newline at end of file