diff --git a/svtools/source/svhtml/parhtml.cxx b/svtools/source/svhtml/parhtml.cxx
index acd523092ff2..cd8faf0509af 100644
--- a/svtools/source/svhtml/parhtml.cxx
+++ b/svtools/source/svhtml/parhtml.cxx
@@ -1390,7 +1390,7 @@ const HTMLOptions& HTMLParser::GetOptions( sal_uInt16 *pNoConvertToken )
             // PlugIns require original token name. Convert to lower case only for searching.
             nToken = GetHTMLOption( sName.toAsciiLowerCase() ); // Name is ready
             SAL_WARN_IF( nToken==HTML_O_UNKNOWN, "svtools",
-                        "GetOption: unknown HTML option" );
+                        "GetOption: unknown HTML option '" << sName << "'" );
             bool bStripCRLF = (nToken < HTML_OPTION_SCRIPT_START ||
                                nToken >= HTML_OPTION_SCRIPT_END) &&
                               (!pNoConvertToken || nToken != *pNoConvertToken);