1 files changed, 2 insertions, 1 deletions
diff --git a/Userland/Utilities/pro.cpp b/Userland/Utilities/pro.cpp
index 6bf653d1bc..28091cf683 100644
--- a/Userland/Utilities/pro.cpp
+++ b/Userland/Utilities/pro.cpp
@@ -122,7 +122,8 @@ private:
     {
         if (!m_condition()) {
         write_to_buffer:;
-            if (!m_buffer.try_append(bytes.data(), bytes.size()))
+            // FIXME: Propagate errors.
+            if (m_buffer.try_append(bytes.data(), bytes.size()).is_error())
                 return 0;
             return bytes.size();
         }