diff --git a/eth/tracers/internal/tracetest/calltrace_test.go b/eth/tracers/internal/tracetest/calltrace_test.go
index 06ccb0380f..84704a1313 100644
--- a/eth/tracers/internal/tracetest/calltrace_test.go
+++ b/eth/tracers/internal/tracetest/calltrace_test.go
@@ -65,11 +65,8 @@ type callTrace struct {
 
 // callTracerTest defines a single test to check the call tracer against.
 type callTracerTest struct {
-	Genesis      *core.Genesis   `json:"genesis"`
-	Context      *traceContext   `json:"context"`
-	Input        string          `json:"input"`
-	TracerConfig json.RawMessage `json:"tracerConfig"`
-	Result       *callTrace      `json:"result"`
+	tracerTestEnv
+	Result *callTrace `json:"result"`
 }
 
 // Iterates over all the input-output datasets in the tracer test harness and
diff --git a/eth/tracers/internal/tracetest/flat_calltrace_test.go b/eth/tracers/internal/tracetest/flat_calltrace_test.go
index 745561ee4b..c89e79d77e 100644
--- a/eth/tracers/internal/tracetest/flat_calltrace_test.go
+++ b/eth/tracers/internal/tracetest/flat_calltrace_test.go
@@ -61,11 +61,8 @@ type flatCallTraceResult struct {
 
 // flatCallTracerTest defines a single test to check the call tracer against.
 type flatCallTracerTest struct {
-	Genesis      *core.Genesis   `json:"genesis"`
-	Context      *traceContext   `json:"context"`
-	Input        string          `json:"input"`
-	TracerConfig json.RawMessage `json:"tracerConfig"`
-	Result       []flatCallTrace `json:"result"`
+	tracerTestEnv
+	Result []flatCallTrace `json:"result"`
 }
 
 func flatCallTracerTestRunner(tracerName string, filename string, dirPath string, t testing.TB) error {
diff --git a/eth/tracers/internal/tracetest/prestate_test.go b/eth/tracers/internal/tracetest/prestate_test.go
index e8960b8195..481d95897e 100644
--- a/eth/tracers/internal/tracetest/prestate_test.go
+++ b/eth/tracers/internal/tracetest/prestate_test.go
@@ -43,13 +43,10 @@ type account struct {
 	Storage map[common.Hash]common.Hash `json:"storage"`
 }
 
-// testcase defines a single test to check the stateDiff tracer against.
-type testcase struct {
-	Genesis      *core.Genesis   `json:"genesis"`
-	Context      *traceContext   `json:"context"`
-	Input        string          `json:"input"`
-	TracerConfig json.RawMessage `json:"tracerConfig"`
-	Result       interface{}     `json:"result"`
+// prestateTracerTest defines a single test to check the stateDiff tracer against.
+type prestateTracerTest struct {
+	tracerTestEnv
+	Result interface{} `json:"result"`
 }
 
 func TestPrestateTracerLegacy(t *testing.T) {
@@ -78,7 +75,7 @@ func testPrestateDiffTracer(tracerName string, dirPath string, t *testing.T) {
 			t.Parallel()
 
 			var (
-				test = new(testcase)
+				test = new(prestateTracerTest)
 				tx   = new(types.Transaction)
 			)
 			// Call tracer test found, read if from disk
diff --git a/eth/tracers/internal/tracetest/util.go b/eth/tracers/internal/tracetest/util.go
index 6aa15c209c..347286b468 100644
--- a/eth/tracers/internal/tracetest/util.go
+++ b/eth/tracers/internal/tracetest/util.go
@@ -1,6 +1,7 @@
 package tracetest
 
 import (
+	"encoding/json"
 	"math/big"
 	"strings"
 	"unicode"
@@ -54,3 +55,11 @@ func (c *traceContext) toBlockContext(genesis *core.Genesis) vm.BlockContext {
 	}
 	return context
 }
+
+// tracerTestEnv defines a tracer test required fields
+type tracerTestEnv struct {
+	Genesis      *core.Genesis   `json:"genesis"`
+	Context      *traceContext   `json:"context"`
+	Input        string          `json:"input"`
+	TracerConfig json.RawMessage `json:"tracerConfig"`
+}