diff --git a/src/vim9.h b/src/vim9.h
index e30ebda..bafff94 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -32,7 +32,7 @@
 
     ISN_SOURCE,	    // source autoload script, isn_arg.number is the script ID
     ISN_INSTR,	    // instructions compiled from expression
-    ISN_CONSTRUCT,  // construct an object, using contstruct_T
+    ISN_CONSTRUCT,  // construct an object, using construct_T
     ISN_GET_OBJ_MEMBER, // object member, index is isn_arg.number
     ISN_GET_ITF_MEMBER, // interface member, index is isn_arg.classmember
     ISN_STORE_THIS, // store value in "this" object member, index is