diff --git a/io/io/src/TStreamerInfo.cxx b/io/io/src/TStreamerInfo.cxx
index 2e066b74382cb..8ca43bc1e735c 100644
--- a/io/io/src/TStreamerInfo.cxx
+++ b/io/io/src/TStreamerInfo.cxx
@@ -1860,7 +1860,7 @@ void TStreamerInfo::BuildOld()
                }
             }
             // We need to initialize the element now, as we need the
-            // correct StraemerInfo next.
+            // correct StreamerInfo next.
             element->Init(this);
 
             // Force the StreamerInfo "Compilation" of the base classes first. This is necessary in