1 files changed, 6 insertions, 4 deletions
diff --git a/bignum.c b/bignum.c
index 9839f552fb..a908a5c78a 100644
--- a/bignum.c
+++ b/bignum.c
@@ -507,7 +507,12 @@ rb_str_to_inum(str, base, badcheck)
     long len;
 
     StringValue(str);
-    s = RSTRING(str)->ptr;
+    if (badcheck) {
+	s = StringValueCStr(str);
+    }
+    else {
+	s = RSTRING(str)->ptr;
+    }
     if (s) {
 	len = RSTRING(str)->len;
 	if (s[len]) {		/* no sentinel somehow */
@@ -517,9 +522,6 @@ rb_str_to_inum(str, base, badcheck)
 	    p[len] = '\0';
 	    s = p;
 	}
-	if (badcheck && len != strlen(s)) {
-	    rb_raise(rb_eArgError, "string for Integer contains null byte");
-	}
     }
     return rb_cstr_to_inum(s, base, badcheck); 
 }