Index: generic/nsf.c
===================================================================
diff -u -N -r0ca1bf1c5b3e4a029e935e5f8a42221b61c0d747 -r5a34df6ef70a354e29438bc9a7c553c0fb8b9677
--- generic/nsf.c	(.../nsf.c)	(revision 0ca1bf1c5b3e4a029e935e5f8a42221b61c0d747)
+++ generic/nsf.c	(.../nsf.c)	(revision 5a34df6ef70a354e29438bc9a7c553c0fb8b9677)
@@ -16393,12 +16393,12 @@
  *----------------------------------------------------------------------
  */
 static int ParamDefsParse(Tcl_Interp *interp, Tcl_Obj *procNameObj, Tcl_Obj *paramSpecObjs,
-                          unsigned int allowedOptinons, int forceParamdefs, NsfParsedParam *parsedParamPtr)
+                          unsigned int allowedOptions, int forceParamdefs, NsfParsedParam *parsedParamPtr)
   nonnull(1) nonnull(3) nonnull(6);
 
 static int
 ParamDefsParse(Tcl_Interp *interp, Tcl_Obj *procNameObj, Tcl_Obj *paramSpecObjs,
-               unsigned int allowedOptinons, int forceParamdefs, NsfParsedParam *parsedParamPtr) {
+               unsigned int allowedOptions, int forceParamdefs, NsfParsedParam *parsedParamPtr) {
   Tcl_Obj **argsv;
   int result, argsc;
 
@@ -16422,7 +16422,7 @@
     paramPtr = paramsPtr = ParamsNew((size_t)argsc);
 
     for (i = 0; i < argsc; i++, paramPtr++) {
-      result = ParamParse(interp, procNameObj, argsv[i], allowedOptinons,
+      result = ParamParse(interp, procNameObj, argsv[i], allowedOptions,
                           paramPtr, &possibleUnknowns, &plainParams, &nrNonposArgs);
 
       if (result == TCL_OK && paramPtr->converter == ConvertToNothing && i < argsc-1) {