diff --git a/src/import-export/csv/gnc-csv-gnumeric-popup.c b/src/import-export/csv/gnc-csv-gnumeric-popup.c
index 6c1cb92ca7..8f0f299787 100644
--- a/src/import-export/csv/gnc-csv-gnumeric-popup.c
+++ b/src/import-export/csv/gnc-csv-gnumeric-popup.c
@@ -1,5 +1,5 @@
 /* The following is code copied from Gnumeric 1.7.8 licensed under the
- * GNU General Public License version 2. It is from the file
+ * GNU General Public License version 2 and/or version 3. It is from the file
  * gnumeric/src/gui-util.c, and it has been modified slightly to work
  * within GnuCash. */
 
diff --git a/src/import-export/csv/gnc-csv-gnumeric-popup.h b/src/import-export/csv/gnc-csv-gnumeric-popup.h
index 3ff57f3667..b173a171da 100644
--- a/src/import-export/csv/gnc-csv-gnumeric-popup.h
+++ b/src/import-export/csv/gnc-csv-gnumeric-popup.h
@@ -1,5 +1,5 @@
 /* The following is code copied from Gnumeric 1.7.8 licensed under the
- * GNU General Public License version 2. It is from the file
+ * GNU General Public License version 2 and/or version 3. It is from the file
  * gnumeric/src/gui-util.h, and it has been modified slightly to work
  * within GnuCash. */
 
diff --git a/src/import-export/csv/gnc-csv-import.c b/src/import-export/csv/gnc-csv-import.c
index 91b2df6ede..a83292b8a9 100644
--- a/src/import-export/csv/gnc-csv-import.c
+++ b/src/import-export/csv/gnc-csv-import.c
@@ -540,7 +540,7 @@ static GtkCellRenderer* gnc_csv_preview_get_cell_renderer(GncCsvPreview* preview
 }
 
 /* The following is code copied from Gnumeric 1.7.8 licensed under the
- * GNU General Public License version 2. It is from the file
+ * GNU General Public License version 2 and/or version 3. It is from the file
  * gnumeric/src/dialogs/dialog-stf-fixed-page.c, and it has been
  * modified slightly to work within GnuCash. */