diff --git a/lib/runtime/wasmer/exports_test.go b/lib/runtime/wasmer/exports_test.go
index 2af04987eb..7a9f937a6e 100644
--- a/lib/runtime/wasmer/exports_test.go
+++ b/lib/runtime/wasmer/exports_test.go
@@ -1223,7 +1223,7 @@ func TestInstance_ExecuteBlock_WestendBlock1097836(t *testing.T) {
 		*types.NewBABEPreRuntimeDigest(common.MustHexToBytes("0x02020000006522d30f00000000")),
 		types.SealDigest{
 			ConsensusEngineID: types.BabeEngineID,
-			Data:              common.MustHexToBytes("0xa06e4a23ae347c7edd24f84153c007563895d64a06b8781b1e21bf2c8bc426676bfd4bf20c08f276e54598aff3b64541d84c4b5da7bfa39479d0a45585a75388"),
+			Data:              common.MustHexToBytes("0xa06e4a23ae347c7edd24f84153c007563895d64a06b8781b1e21bf2c8bc426676bfd4bf20c08f276e54598aff3b64541d84c4b5da7bfa39479d0a45585a75388"), //nolint:lll
 		},
 	)
 
@@ -1234,7 +1234,7 @@ func TestInstance_ExecuteBlock_WestendBlock1097836(t *testing.T) {
 	ext, err = common.HexToBytes("0x040d0000")
 	require.NoError(t, err)
 	exts = append(exts, ext)
-	ext, err = common.HexToBytes("0x84c2c9676ac7a4e56bcb861cf443899114a17baa817ae5c295b9bb6f947fc427fd02db25d6a66498b5e81ac3a52ae4025eef7bb36eee31195c60c7ebdb6f0bac4177baf32e73719fe3e5fdce1059e9e16bb85bad0a0c4e34c4b0e680fb7a132cc4f7018502000004000c60f6d9b5a5ee5a0c0428d1940936a1b91cd29924578f7ac9e793db6dab0cd70700e40b5402")
+	ext, err = common.HexToBytes("0x84c2c9676ac7a4e56bcb861cf443899114a17baa817ae5c295b9bb6f947fc427fd02db25d6a66498b5e81ac3a52ae4025eef7bb36eee31195c60c7ebdb6f0bac4177baf32e73719fe3e5fdce1059e9e16bb85bad0a0c4e34c4b0e680fb7a132cc4f7018502000004000c60f6d9b5a5ee5a0c0428d1940936a1b91cd29924578f7ac9e793db6dab0cd70700e40b5402") //nolint:lll
 	require.NoError(t, err)
 	exts = append(exts, ext)
 
diff --git a/lib/runtime/wazero/test_helpers.go b/lib/runtime/wazero/test_helpers.go
index 78e1f4cfde..fe752d3238 100644
--- a/lib/runtime/wazero/test_helpers.go
+++ b/lib/runtime/wazero/test_helpers.go
@@ -7,6 +7,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"path/filepath"
 	"testing"
 
 	"github.com/ChainSafe/gossamer/internal/log"
@@ -73,9 +74,9 @@ func NewTestInstanceWithTrie(t *testing.T, targetRuntime string, tt *trie.Trie)
 func NewInstanceFromFile(fp string, cfg Config) (*Instance, error) {
 	// Reads the WebAssembly module as bytes.
 	// Retrieve WASM binary
-	bytes, err := os.ReadFile(fp)
+	bytes, err := os.ReadFile(filepath.Clean(fp))
 	if err != nil {
-		return nil, fmt.Errorf("Failed to read wasm file: %s", err)
+		return nil, fmt.Errorf("failed to read wasm file: %s", err)
 	}
 
 	return NewInstance(bytes, cfg)