diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index d012f4c97b..d2e672d431 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -15358,6 +15358,15 @@ HOST-127.EXAMPLE. MX 0 .
 	    <acronym>BIND</acronym> 8 statistics, if applicable.
 	  </para>
 
+	  <para>
+	    Note: BIND statistics counters are signed 64-bit values on
+	    all platforms except one: 32-bit Windows, where they are
+	    signed 32-bit values.  Given that 32-bit values have a
+	    vastly smaller range than 64-bit values, BIND statistics
+	    counters in 32-bit Windows builds overflow significantly
+	    more quickly than on all other platforms.
+	  </para>
+
 	  <section xml:id="stats_counters"><info><title>Name Server Statistics Counters</title></info>
 
 	    <informaltable colsep="0" rowsep="0">
diff --git a/lib/isc/stats.c b/lib/isc/stats.c
index bbdb1f91ea..9a0e2f10ed 100644
--- a/lib/isc/stats.c
+++ b/lib/isc/stats.c
@@ -30,7 +30,11 @@
 #define ISC_STATS_MAGIC			ISC_MAGIC('S', 't', 'a', 't')
 #define ISC_STATS_VALID(x)		ISC_MAGIC_VALID(x, ISC_STATS_MAGIC)
 
+#if defined(_WIN32) && !defined(_WIN64)
+typedef atomic_int_fast32_t isc_stat_t;
+#else
 typedef atomic_int_fast64_t isc_stat_t;
+#endif
 
 struct isc_stats {
 	unsigned int		magic;