diff --git a/RELEASES.rst b/RELEASES.rst
index 1ec7d8e8..dbb58e68 100644
--- a/RELEASES.rst
+++ b/RELEASES.rst
@@ -919,6 +919,9 @@ Planned
 1.3.0 (2015-XX-XX)
 ------------------
 
+* Fix duk_push_nan() NaN normalization bug which caused segfaults when using
+  MSVC on x86 and potentially on other 32-bit platforms (GH-168)
+
 2.0.0 (XXXX-XX-XX)
 ------------------
 
diff --git a/src/duk_api_stack.c b/src/duk_api_stack.c
index 18b35dc1..b49fd0ea 100644
--- a/src/duk_api_stack.c
+++ b/src/duk_api_stack.c
@@ -2900,14 +2900,15 @@ DUK_EXTERNAL void duk_push_uint(duk_context *ctx, duk_uint_t val) {
 DUK_EXTERNAL void duk_push_nan(duk_context *ctx) {
 	duk_hthread *thr;
 	duk_tval *tv_slot;
-	duk_double_t d;
+	duk_double_union du;
 
 	DUK_ASSERT(ctx != NULL);
 	thr = (duk_hthread *) ctx;
 	DUK__CHECK_SPACE();
-	d = DUK_DOUBLE_NAN;
+	DUK_DBLUNION_SET_NAN(&du);
+	DUK_ASSERT(DUK_DBLUNION_IS_NORMALIZED(&du));
 	tv_slot = thr->valstack_top++;
-	DUK_TVAL_SET_NUMBER(tv_slot, d);
+	DUK_TVAL_SET_NUMBER(tv_slot, du.d);
 }
 
 DUK_EXTERNAL const char *duk_push_lstring(duk_context *ctx, const char *str, duk_size_t len) {