diff --git a/src/edt/edt/edtRecentConfigurationPage.h b/src/edt/edt/edtRecentConfigurationPage.h
index e18beeb1a..bf0777ba5 100644
--- a/src/edt/edt/edtRecentConfigurationPage.h
+++ b/src/edt/edt/edtRecentConfigurationPage.h
@@ -40,7 +40,7 @@ namespace lay
 
 namespace db
 {
-  class LayerProperties;
+  struct LayerProperties;
 }
 
 namespace edt
diff --git a/src/laybasic/laybasic/layParsedLayerSource.h b/src/laybasic/laybasic/layParsedLayerSource.h
index f79592a1f..21ecf84d9 100644
--- a/src/laybasic/laybasic/layParsedLayerSource.h
+++ b/src/laybasic/laybasic/layParsedLayerSource.h
@@ -36,7 +36,7 @@
 namespace db
 {
   class Layout;
-  class LayerProperties;
+  struct LayerProperties;
 }
 
 namespace lay 
diff --git a/src/layui/layui/layEditorOptionsPage.h b/src/layui/layui/layEditorOptionsPage.h
index c54f4e31a..418892287 100644
--- a/src/layui/layui/layEditorOptionsPage.h
+++ b/src/layui/layui/layEditorOptionsPage.h
@@ -33,7 +33,7 @@
 
 namespace db
 {
-  class LayerProperties;
+  struct LayerProperties;
 }
 
 namespace lay