diff --git a/icons/octave.xpm b/icons/octave.xpm
new file mode 100644
index 0000000..c788a89
--- /dev/null
+++ b/icons/octave.xpm
@@ -0,0 +1,98 @@
+/* XPM */
+static char * e:\EmacsPortable_App\Data\src\mode_icons\icons\octave_xpm[] = {
+"16 16 79 1",
+" 	c None",
+".	c #48BBD8",
+"+	c #4DBEDA",
+"@	c #52C1DC",
+"#	c #56C4DD",
+"$	c #38B0D3",
+"%	c #3DB3D5",
+"&	c #43B7D6",
+"*	c #47BAD8",
+"=	c #58C5DE",
+"-	c #5CC7E0",
+";	c #2FAACF",
+">	c #34ADD0",
+",	c #38B0D2",
+"'	c #75B4B6",
+")	c #DA7126",
+"!	c #2AA7CD",
+"~	c #2EAACF",
+"{	c #32ADD0",
+"]	c #FF7F2A",
+"^	c #F1711C",
+"/	c #0FA6DA",
+"(	c #19A7D6",
+"_	c #1EABD8",
+":	c #EE6E19",
+"<	c #DE6D1E",
+"[	c #DD5D08",
+"}	c #DD6A1A",
+"|	c #DD6A1B",
+"1	c #DD6A1C",
+"2	c #E1610C",
+"3	c #5EC9E0",
+"4	c #ED6D18",
+"5	c #FF802B",
+"6	c #FF802A",
+"7	c #F77722",
+"8	c #EE6D18",
+"9	c #56C3DD",
+"0	c #EA6A15",
+"a	c #FC7C27",
+"b	c #FE7C25",
+"c	c #FF7B22",
+"d	c #F77119",
+"e	c #51C0DC",
+"f	c #7B7259",
+"g	c #508081",
+"h	c #38899C",
+"i	c #4CBDDA",
+"j	c #0190C3",
+"k	c #0793C3",
+"l	c #0E95C4",
+"m	c #799A92",
+"n	c #048FBF",
+"o	c #0A92C1",
+"p	c #0F96C4",
+"q	c #FA7A25",
+"r	c #EC6C17",
+"s	c #068FC0",
+"t	c #0B93C2",
+"u	c #1197C4",
+"v	c #169AC6",
+"w	c #778474",
+"x	c #FE7B24",
+"y	c #EC6D18",
+"z	c #0991C2",
+"A	c #0D94C3",
+"B	c #1398C5",
+"C	c #189CC7",
+"D	c #1EA0C9",
+"E	c #22A3CD",
+"F	c #429BAF",
+"G	c #EA6E1B",
+"H	c #F2711C",
+"I	c #E3640F",
+"J	c #1097C4",
+"K	c #159AC6",
+"L	c #1A9DC7",
+"M	c #1FA0CA",
+"N	c #25A4CD",
+"     .+@#       ",
+"   $%&*  =-     ",
+"  ;>,      ')   ",
+"  !~{       ]^  ",
+" /(_        :<  ",
+"[}|12         3 ",
+"45667           ",
+"4]]]7           ",
+"8]]]7          9",
+"0abcd          e",
+"  fgh          i",
+"   jkl         m",
+"    nop      q5r",
+"     stuv   wx5y",
+"      zABCDEFGHI",
+"        JKLMN   "};
diff --git a/mode-icons.el b/mode-icons.el
index fce560b..0f6290a 100644
--- a/mode-icons.el
+++ b/mode-icons.el
@@ -144,8 +144,9 @@ absolute path to ICON."
     ("Clojure" #xf10a font-mfizz)
     ("Java/l" #xf12b font-mfizz)
     ("C?Perl" #xf148 font-mfizz)
+    ("Octave" "octave" xpm)
     ;; Diminished modes
-    ("\\(ElDoc\\|Anzu\\|SP\\|Guide\\|PgLn\\|Undo-Tree\\|Ergo.*\\|,\\|Isearch\\|Ind\\|Fly\\)" nil nil)
+    ("\\(?:ElDoc\\|Anzu\\|SP\\|Guide\\|PgLn\\|Undo-Tree\\|Ergo.*\\|,\\|Isearch\\|Ind\\|Fly\\)" nil nil)
     )
   "Icons for major and minor modes.