diff --git a/build/windows/installer/gimp3264.iss b/build/windows/installer/gimp3264.iss
index ac258ded22..f7d8fde972 100755
--- a/build/windows/installer/gimp3264.iss
+++ b/build/windows/installer/gimp3264.iss
@@ -187,6 +187,7 @@ PrivilegesRequiredOverridesAllowed=dialog
 
 [Languages]
 Name: "en"; MessagesFile: "compiler:Default.isl,lang\en.setup.isl"
+Name: "bg"; MessagesFile: "compiler:Languages\Bulgarian.isl,lang\bg.setup.isl"
 Name: "ca"; MessagesFile: "compiler:Languages\Catalan.isl,lang\ca.setup.isl"
 Name: "cs"; MessagesFile: "compiler:Languages\Czech.isl,lang\cs.setup.isl"
 Name: "da"; MessagesFile: "compiler:Languages\Danish.isl,lang\da.setup.isl"
diff --git a/build/windows/installer/lang/Makefile.am b/build/windows/installer/lang/Makefile.am
index 63c6034bf9..b60f1ca189 100644
--- a/build/windows/installer/lang/Makefile.am
+++ b/build/windows/installer/lang/Makefile.am
@@ -13,6 +13,7 @@ $(isl_xml_files): $(isl_xml_in_files) $(wildcard $(top_srcdir)/po-windows-instal
 
 # Then, we generate the .isl file for each language using some xsltproc magic
 languages = \
+	bg:bg		\
 	ca:ca		\
 	cs:cs		\
 	da:da		\
diff --git a/build/windows/installer/lang/meson.build b/build/windows/installer/lang/meson.build
index f3474a54f4..a1e1ba8347 100644
--- a/build/windows/installer/lang/meson.build
+++ b/build/windows/installer/lang/meson.build
@@ -8,6 +8,7 @@ ms_installer_config_xml = i18n.merge_file(
 )
 
 languages = [
+  { 'code': 'bg',    },
   { 'code': 'ca',    },
   { 'code': 'cs',    },
   { 'code': 'da',    },