diff --git a/Userland/Applications/SystemMonitor/main.cpp b/Userland/Applications/SystemMonitor/main.cpp
index 5236793fb4..5afeae9461 100644
--- a/Userland/Applications/SystemMonitor/main.cpp
+++ b/Userland/Applications/SystemMonitor/main.cpp
@@ -87,8 +87,8 @@ private:
 
 static bool can_access_pid(pid_t pid)
 {
-    auto path = String::formatted("/proc/{}", pid);
-    return access(path.characters(), X_OK) == 0;
+    int rc = kill(pid, 0);
+    return rc == 0;
 }
 
 int main(int argc, char** argv)