diff --git a/configure.ac b/configure.ac
index 96578a322a..4be87d186d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1448,7 +1448,7 @@ AC_SUBST(GIMP_COMMAND)
 
 # The list of MIME types that are supported by plug-ins that are compiled
 # unconditionally:
-MIME_TYPES="image/bmp;image/g3fax;image/gif;image/x-fits;image/x-pcx;image/x-portable-anymap;image/x-portable-bitmap;image/x-portable-graymap;image/x-portable-pixmap;image/x-psd;image/x-sgi;image/x-tga;image/x-xbitmap;image/x-xwindowdump;image/x-xcf;image/x-compressed-xcf;image/x-gimp-gbr;image/x-gimp-pat;image/x-gimp-gih"
+MIME_TYPES="image/bmp;image/g3fax;image/gif;image/x-fits;image/x-pcx;image/x-portable-anymap;image/x-portable-bitmap;image/x-portable-graymap;image/x-portable-pixmap;image/x-psd;image/x-sgi;image/x-tga;image/x-xbitmap;image/x-xwindowdump;image/x-xcf;image/x-compressed-xcf;image/x-gimp-gbr;image/x-gimp-pat;image/x-gimp-gih;image/x-sun-raster"
 
 #################
 # Bundle packages
diff --git a/meson.build b/meson.build
index 4650bedb00..b2332fb356 100644
--- a/meson.build
+++ b/meson.build
@@ -640,6 +640,7 @@ MIMEtypes = [
   'image/x-portable-pixmap',
   'image/x-psd',
   'image/x-sgi',
+  'image/x-sun-raster',
   'image/x-tga',
   'image/x-xbitmap',
   'image/x-xcf',
diff --git a/plug-ins/common/file-sunras.c b/plug-ins/common/file-sunras.c
index 8e88a2a1a3..30f3a3d2bc 100644
--- a/plug-ins/common/file-sunras.c
+++ b/plug-ins/common/file-sunras.c
@@ -282,7 +282,7 @@ sunras_create_procedure (GimpPlugIn  *plug_in,
       gimp_file_procedure_set_mime_types (GIMP_FILE_PROCEDURE (procedure),
                                           "image/x-sun-raster");
       gimp_file_procedure_set_extensions (GIMP_FILE_PROCEDURE (procedure),
-                                          "im1,im8,im24,im32,rs,ras");
+                                          "im1,im8,im24,im32,rs,ras,sun");
       gimp_file_procedure_set_magics (GIMP_FILE_PROCEDURE (procedure),
                                       "0,long,0x59a66a95");
     }
@@ -311,7 +311,7 @@ sunras_create_procedure (GimpPlugIn  *plug_in,
       gimp_file_procedure_set_mime_types (GIMP_FILE_PROCEDURE (procedure),
                                           "image/x-sun-raster");
       gimp_file_procedure_set_extensions (GIMP_FILE_PROCEDURE (procedure),
-                                          "im1,im8,im24,im32,rs,ras");
+                                          "im1,im8,im24,im32,rs,ras,sun");
 
       GIMP_PROC_ARG_BOOLEAN (procedure, "rle",
                              "RLE",