diff --git a/libc/tzcode/strftime.c b/libc/tzcode/strftime.c
index e92c44d..1b223e5 100644
--- a/libc/tzcode/strftime.c
+++ b/libc/tzcode/strftime.c
@@ -592,7 +592,7 @@
                 continue;
             case 'z':
                 {
-                int     diff;
+                long     diff;
                 char const *    sign;
 
                 if (t->tm_isdst < 0)
@@ -601,7 +601,7 @@
                 diff = t->TM_GMTOFF;
 #else /* !defined TM_GMTOFF */
                 /*
-                ** C99 says that the UTC offset must
+                ** C99 says that the UT offset must
                 ** be computed by looking only at
                 ** tm_isdst. This requirement is
                 ** incorrect, since it means the code