diff --git a/src/engine/engine_vis_init.c b/src/engine/engine_vis_init.c
index 341c9124..24a33fc3 100644
--- a/src/engine/engine_vis_init.c
+++ b/src/engine/engine_vis_init.c
@@ -63,7 +63,7 @@ const char* mjFRAMESTRING[mjNFRAME] = {
 };
 
 
-// visual opptions: {name, initial value, shortcut}
+// visual options: {name, initial value, shortcut}
 const char* mjVISSTRING[mjNVISFLAG][3] = {
   {"Convex &Hull",    "0", "H"},
   {"Te&xture",        "1", "X"},