1 files changed, 1 insertions, 1 deletions
diff --git a/util.c b/util.c
index ae2bc8de92..9b058e6114 100644
--- a/util.c
+++ b/util.c
@@ -859,7 +859,7 @@ ruby_strtod(string, endPtr)
 	 * fraction.
 	 */
     
-	if (exp > MDMAXEXPT - 18) {
+	if (exp >= MDMAXEXPT - 18) {
 	    exp = MDMAXEXPT;
 	    errno = ERANGE;
 	}