s/Togle/Toggle/
diff --git a/progs/demos/terrain.c b/progs/demos/terrain.c
index 990c7b8..be78ea4 100644
--- a/progs/demos/terrain.c
+++ b/progs/demos/terrain.c
@@ -229,15 +229,15 @@
    printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
 
    glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Togle Help");
+   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
    glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Togle Textures");
+   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
    glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Togle Fog");
+   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
    glRasterPos2i(60, 300);
    printstring(GLUT_BITMAP_TIMES_ROMAN_24, "p - Wire frame");
    glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Togle Back face culling");
+   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
    glRasterPos2i(60, 240);
    printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
    glRasterPos2i(60, 210);
@@ -248,7 +248,7 @@
    glRasterPos2i(60, 150);
    if (joyavailable)
       printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Togle jostick control (Joystick control available)");
+		  "j - Toggle jostick control (Joystick control available)");
    else
       printstring(GLUT_BITMAP_TIMES_ROMAN_24,
 		  "(No Joystick control available)");