1 files changed, 2 insertions, 1 deletions
diff --git a/Userland/Utilities/pro.cpp b/Userland/Utilities/pro.cpp
index 7556eb7a17..6bf653d1bc 100644
--- a/Userland/Utilities/pro.cpp
+++ b/Userland/Utilities/pro.cpp
@@ -122,7 +122,8 @@ private:
     {
         if (!m_condition()) {
         write_to_buffer:;
-            m_buffer.append(bytes.data(), bytes.size());
+            if (!m_buffer.try_append(bytes.data(), bytes.size()))
+                return 0;
             return bytes.size();
         }