diff --git a/libgimp/meson.build b/libgimp/meson.build
index 6e1d974e10..11253dfce5 100644
--- a/libgimp/meson.build
+++ b/libgimp/meson.build
@@ -495,6 +495,11 @@ else
     'GObject-2.0',
     'Pango-1.0',
   ]
+  if not platform_windows
+    libgimp_gir_includes += [ 'GioUnix-2.0' ]
+  else
+    libgimp_gir_includes += [ 'GioWin32-2.0' ]
+  endif
 
   gir_args = [
     '-DGIMP_COMPILATION',