diff --git a/gnucash/import-export/CMakeLists.txt b/gnucash/import-export/CMakeLists.txt
index 40b93d2793..38e0ac97ed 100644
--- a/gnucash/import-export/CMakeLists.txt
+++ b/gnucash/import-export/CMakeLists.txt
@@ -20,7 +20,7 @@ set (generic_import_SOURCES
   import-format-dialog.cpp
   import-match-picker.cpp
   import-parse.c
-  import-utilities.c
+  import-utilities.cpp
   import-settings.cpp
   import-main-matcher.cpp
   import-pending-matches.cpp
diff --git a/gnucash/import-export/import-utilities.c b/gnucash/import-export/import-utilities.cpp
similarity index 100%
rename from gnucash/import-export/import-utilities.c
rename to gnucash/import-export/import-utilities.cpp
diff --git a/gnucash/import-export/test/CMakeLists.txt b/gnucash/import-export/test/CMakeLists.txt
index d1b39c0d70..7d1d1c8dc2 100644
--- a/gnucash/import-export/test/CMakeLists.txt
+++ b/gnucash/import-export/test/CMakeLists.txt
@@ -58,7 +58,7 @@ set(gtest_import_backend_SOURCES
   gtest-import-backend.cpp
   ${CMAKE_SOURCE_DIR}/gnucash/import-export/import-backend.cpp
   ${CMAKE_SOURCE_DIR}/gnucash/import-export/import-settings.cpp
-  ${CMAKE_SOURCE_DIR}/gnucash/import-export/import-utilities.c
+  ${CMAKE_SOURCE_DIR}/gnucash/import-export/import-utilities.cpp
   ${CMAKE_SOURCE_DIR}/libgnucash/engine/mocks/gmock-qofinstance.cpp
   ${CMAKE_SOURCE_DIR}/libgnucash/app-utils/mocks/gmock-gnc-prefs.cpp
   ${CMAKE_SOURCE_DIR}/libgnucash/engine/mocks/gmock-qofbook.cpp
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 5f5c90b545..7bcc0cf5f2 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -355,7 +355,7 @@ gnucash/import-export/import-match-picker.cpp
 gnucash/import-export/import-parse.c
 gnucash/import-export/import-pending-matches.cpp
 gnucash/import-export/import-settings.cpp
-gnucash/import-export/import-utilities.c
+gnucash/import-export/import-utilities.cpp
 gnucash/import-export/log-replay/gnc-log-replay.c
 gnucash/import-export/log-replay/gnc-plugin-log-replay.c
 gnucash/import-export/ofx/gncmod-ofx-import.c