diff --git a/eeschema/sch_plugins/altium/sch_altium_plugin.cpp b/eeschema/sch_plugins/altium/sch_altium_plugin.cpp
index 8997bc9de9..1a94e87aaf 100644
--- a/eeschema/sch_plugins/altium/sch_altium_plugin.cpp
+++ b/eeschema/sch_plugins/altium/sch_altium_plugin.cpp
@@ -156,7 +156,8 @@ SCH_SHEET* SCH_ALTIUM_PLUGIN::Load( const wxString& aFileName, SCHEMATIC* aSchem
 {
     wxASSERT( !aFileName || aSchematic != NULL );
 
-    m_filename  = aFileName;
+    wxFileName fileName( aFileName );
+    fileName.SetExt( ".kicad_sch" );
     m_schematic = aSchematic;
 
     // Delete on exception, if I own m_rootSheet, according to aAppendToMe
diff --git a/eeschema/sch_plugins/altium/sch_altium_plugin.h b/eeschema/sch_plugins/altium/sch_altium_plugin.h
index f1ce3ba261..d287fcfe4c 100644
--- a/eeschema/sch_plugins/altium/sch_altium_plugin.h
+++ b/eeschema/sch_plugins/altium/sch_altium_plugin.h
@@ -136,7 +136,6 @@ private:
 private:
     SCH_SHEET* m_rootSheet;      // The root sheet of the schematic being loaded..
     SCH_SHEET* m_currentSheet;   // The current sheet of the schematic being loaded..
-    wxFileName m_filename;
     SCHEMATIC* m_schematic;      // Passed to Load(), the schematic object being loaded
     wxString   m_libName;        // Library name to save symbols
 
diff --git a/eeschema/sch_plugins/eagle/sch_eagle_plugin.cpp b/eeschema/sch_plugins/eagle/sch_eagle_plugin.cpp
index d87e1b3618..b56d06cd6b 100644
--- a/eeschema/sch_plugins/eagle/sch_eagle_plugin.cpp
+++ b/eeschema/sch_plugins/eagle/sch_eagle_plugin.cpp
@@ -712,7 +712,7 @@ void SCH_EAGLE_PLUGIN::loadSheet( wxXmlNode* aSheetNode, int aSheetIndex )
     ReplaceIllegalFileNameChars( &filename );
     replace( filename.begin(), filename.end(), ' ', '_' );
 
-    wxString fn = wxString( filename + ".sch" );
+    wxString fn = wxString( filename + ".kicad_sch" );
     filenameField.SetText( fn );
     wxFileName fileName( fn );
     m_currentSheet->GetScreen()->SetFileName( fileName.GetFullPath() );