diff --git a/eeschema/sch_legacy_plugin.cpp b/eeschema/sch_legacy_plugin.cpp
index 2d823a8748..e2d58ecc45 100644
--- a/eeschema/sch_legacy_plugin.cpp
+++ b/eeschema/sch_legacy_plugin.cpp
@@ -2117,7 +2117,12 @@ void SCH_LEGACY_PLUGIN_CACHE::Load()
     const char* line = reader.Line();
 
     if( !strCompare( "EESchema-LIBRARY Version", line, &line ) )
-        SCH_PARSE_ERROR( "file is not a valid component or symbol library file", reader, line );
+    {
+        // Old .sym files (which are libraries with only one symbol, used to store and reuse shapes)
+        // EESchema-LIB Version x.x SYMBOL. They are valid files.
+        if( !strCompare( "EESchema-LIB Version", line, &line ) )
+            SCH_PARSE_ERROR( "file is not a valid component or symbol library file", reader, line );
+    }
 
     m_versionMajor = parseInt( reader, line, &line );
 
@@ -2735,7 +2740,11 @@ LIB_ARC* SCH_LEGACY_PLUGIN_CACHE::loadArc( std::unique_ptr< LIB_PART >& aPart,
     arc->SetUnit( parseInt( aReader, line, &line ) );
     arc->SetConvert( parseInt( aReader, line, &line ) );
     arc->SetWidth( parseInt( aReader, line, &line ) );
-    arc->SetFillMode( parseFillMode( aReader, line, &line ) );
+
+    // Old libraries (version <= 2.2) do not have always this FILL MODE param
+    // when fill mode is no fill (default mode).
+    if( *line != 0 )
+        arc->SetFillMode( parseFillMode( aReader, line, &line ) );
 
     // Actual Coordinates of arc ends are read from file
     if( *line != 0 )