diff --git a/processor/probabilisticsamplerprocessor/fnvhasher.go b/processor/probabilisticsamplerprocessor/fnvhasher.go
index c12d803f2975..d0fd366f1d26 100644
--- a/processor/probabilisticsamplerprocessor/fnvhasher.go
+++ b/processor/probabilisticsamplerprocessor/fnvhasher.go
@@ -4,6 +4,7 @@
 package probabilisticsamplerprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor"
 
 import (
+	"encoding/binary"
 	"hash/fnv"
 )
 
@@ -19,8 +20,6 @@ func computeHash(b []byte, seed uint32) uint32 {
 // i32tob converts a seed to a byte array to be used as part of fnv.Write()
 func i32tob(val uint32) []byte {
 	r := make([]byte, 4)
-	for i := uint32(0); i < 4; i++ {
-		r[i] = byte((val >> (8 * i)) & 0xff)
-	}
+	binary.LittleEndian.PutUint32(r, val)
 	return r
 }
diff --git a/processor/probabilisticsamplerprocessor/fnvhasher_test.go b/processor/probabilisticsamplerprocessor/fnvhasher_test.go
new file mode 100644
index 000000000000..5f69d3fcb0e0
--- /dev/null
+++ b/processor/probabilisticsamplerprocessor/fnvhasher_test.go
@@ -0,0 +1,16 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package probabilisticsamplerprocessor
+
+import (
+	"testing"
+)
+
+func BenchmarkSeedConversion(b *testing.B) {
+	val := uint32(0x3024001) // Just a random 32 bit int
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		i32tob(val)
+	}
+}