diff --git a/src/bytes/hash/smhasher_test.go b/src/bytes/hash/smhasher_test.go
index 1b7b44db09..f5169ffa27 100644
--- a/src/bytes/hash/smhasher_test.go
+++ b/src/bytes/hash/smhasher_test.go
@@ -12,6 +12,7 @@ import (
 	"runtime"
 	"strings"
 	"testing"
+	"unsafe"
 )
 
 // Smhasher is a torture test for hash functions.
@@ -450,6 +451,9 @@ func text(t *testing.T, prefix, suffix string) {
 
 // Make sure different seed values generate different hashes.
 func TestSmhasherSeed(t *testing.T) {
+	if unsafe.Sizeof(uintptr(0)) == 4 {
+		t.Skip("32-bit platforms don't have ideal seed-input distributions (see issue 33988)")
+	}
 	h := newHashSet()
 	const N = 100000
 	s := "hello"