diff --git a/scripts/unifdef.c b/scripts/unifdef.c
index db00e3e30a59..ff15efd6e7d7 100644
--- a/scripts/unifdef.c
+++ b/scripts/unifdef.c
@@ -203,7 +203,7 @@ static int              depth;			/* current #if nesting */
 static int              delcount;		/* count of deleted lines */
 static unsigned         blankcount;		/* count of blank lines */
 static unsigned         blankmax;		/* maximum recent blankcount */
-static bool             constexpr;		/* constant #if expression */
+static bool             constexpression;	/* constant #if expression */
 static bool             zerosyms = true;	/* to format symdepth output */
 static bool             firstsym;		/* ditto */
 
@@ -819,7 +819,7 @@ static const struct ops {
 /*
  * Function for evaluating the innermost parts of expressions,
  * viz. !expr (expr) number defined(symbol) symbol
- * We reset the constexpr flag in the last two cases.
+ * We reset the constexpression flag in the last two cases.
  */
 static Linetype
 eval_unary(const struct ops *ops, int *valp, const char **cpp)
@@ -877,7 +877,7 @@ eval_unary(const struct ops *ops, int *valp, const char **cpp)
 		cp = skipcomment(cp);
 		if (defparen && *cp++ != ')')
 			return (LT_ERROR);
-		constexpr = false;
+		constexpression = false;
 	} else if (!endsym(*cp)) {
 		debug("eval%d symbol", ops - eval_ops);
 		sym = findsym(cp);
@@ -895,7 +895,7 @@ eval_unary(const struct ops *ops, int *valp, const char **cpp)
 			lt = *valp ? LT_TRUE : LT_FALSE;
 			cp = skipargs(cp);
 		}
-		constexpr = false;
+		constexpression = false;
 	} else {
 		debug("eval%d bad expr", ops - eval_ops);
 		return (LT_ERROR);
@@ -955,10 +955,10 @@ ifeval(const char **cpp)
 	int val = 0;
 
 	debug("eval %s", *cpp);
-	constexpr = killconsts ? false : true;
+	constexpression = killconsts ? false : true;
 	ret = eval_table(eval_ops, &val, cpp);
 	debug("eval = %d", val);
-	return (constexpr ? LT_IF : ret == LT_ERROR ? LT_IF : ret);
+	return (constexpression ? LT_IF : ret == LT_ERROR ? LT_IF : ret);
 }
 
 /*