diff --git a/ignite/templates/module/create/files/base/x/{{moduleName}}/types/genesis_test.go.plush b/ignite/templates/module/create/files/base/x/{{moduleName}}/types/genesis_test.go.plush
index 8a53260a3e..5a6d2911c4 100644
--- a/ignite/templates/module/create/files/base/x/{{moduleName}}/types/genesis_test.go.plush
+++ b/ignite/templates/module/create/files/base/x/{{moduleName}}/types/genesis_test.go.plush
@@ -22,7 +22,6 @@ func TestGenesisState_Validate(t *testing.T) {
             desc:     "valid genesis state",
             genState: &types.GenesisState{
             	<%= if (isIBC) { %>PortId: types.PortID,<% } %>
-                // this line is used by starport scaffolding # types/genesis/validField
             },
             valid:    true,
         },
diff --git a/ignite/templates/module/placeholders.go b/ignite/templates/module/placeholders.go
index a3399ba53a..be6ffd3ad6 100644
--- a/ignite/templates/module/placeholders.go
+++ b/ignite/templates/module/placeholders.go
@@ -16,8 +16,7 @@ const (
 	PlaceholderIBCNewModule = "// this line is used by starport scaffolding # ibc/app/module"
 
 	// Genesis test
-	PlaceholderTypesGenesisTestcase   = "// this line is used by starport scaffolding # types/genesis/testcase"
-	PlaceholderTypesGenesisValidField = "// this line is used by starport scaffolding # types/genesis/validField"
-	PlaceholderGenesisTestState       = "// this line is used by starport scaffolding # genesis/test/state"
-	PlaceholderGenesisTestAssert      = "// this line is used by starport scaffolding # genesis/test/assert"
+	PlaceholderTypesGenesisTestcase = "// this line is used by starport scaffolding # types/genesis/testcase"
+	PlaceholderGenesisTestState     = "// this line is used by starport scaffolding # genesis/test/state"
+	PlaceholderGenesisTestAssert    = "// this line is used by starport scaffolding # genesis/test/assert"
 )
diff --git a/ignite/templates/typed/list/genesis.go b/ignite/templates/typed/list/genesis.go
index 5542adcc80..c00e02d635 100644
--- a/ignite/templates/typed/list/genesis.go
+++ b/ignite/templates/typed/list/genesis.go
@@ -225,22 +225,26 @@ func genesisTypesTestsModify(replacer placeholder.Replacer, opts *typed.Options)
 			return err
 		}
 
-		templateValid := `%[2]vList: []types.%[2]v{
-	{
-		Id: 0,
-	},
-	{
-		Id: 1,
-	},
-},
-%[2]vCount: 2,
-%[1]v`
-		replacementValid := fmt.Sprintf(
-			templateValid,
-			module.PlaceholderTypesGenesisValidField,
-			opts.TypeName.UpperCamel,
+		// add parameter to the struct into the new method.
+		content, err := xast.ModifyFunction(
+			f.String(),
+			"TestGenesisState_Validate",
+			xast.AppendInsideFuncStruct(
+				"GenesisState",
+				fmt.Sprintf("%[1]vList", opts.TypeName.UpperCamel),
+				fmt.Sprintf("[]types.%[1]v{{ Id: 0 }, { Id: 1 }}", opts.TypeName.UpperCamel),
+				-1,
+			),
+			xast.AppendInsideFuncStruct(
+				"GenesisState",
+				fmt.Sprintf("%[1]vCount", opts.TypeName.UpperCamel),
+				"2",
+				-1,
+			),
 		)
-		content := replacer.Replace(f.String(), module.PlaceholderTypesGenesisValidField, replacementValid)
+		if err != nil {
+			return err
+		}
 
 		templateTests := `{
 	desc:     "duplicated %[2]v",
diff --git a/ignite/templates/typed/map/map.go b/ignite/templates/typed/map/map.go
index 3c57de4a1a..59d2a56641 100644
--- a/ignite/templates/typed/map/map.go
+++ b/ignite/templates/typed/map/map.go
@@ -499,21 +499,25 @@ func genesisTypesTestsModify(replacer placeholder.Replacer, opts *typed.Options)
 			sampleIndexes[i] = opts.Index.GenesisArgs(i)
 		}
 
-		templateValid := `%[2]vList: []types.%[2]v{
-	{
-		%[3]v},
-	{
-		%[4]v},
-},
-%[1]v`
-		replacementValid := fmt.Sprintf(
-			templateValid,
-			module.PlaceholderTypesGenesisValidField,
-			opts.TypeName.UpperCamel,
-			sampleIndexes[0],
-			sampleIndexes[1],
+		// add parameter to the struct into the new method.
+		content, err := xast.ModifyFunction(
+			f.String(),
+			"TestGenesisState_Validate",
+			xast.AppendInsideFuncStruct(
+				"GenesisState",
+				fmt.Sprintf("%[1]vList", opts.TypeName.UpperCamel),
+				fmt.Sprintf(
+					"[]types.%[1]v{{ %[2]v }, { %[3]v }}",
+					opts.TypeName.UpperCamel,
+					sampleIndexes[0],
+					sampleIndexes[1],
+				),
+				-1,
+			),
 		)
-		content := replacer.Replace(f.String(), module.PlaceholderTypesGenesisValidField, replacementValid)
+		if err != nil {
+			return err
+		}
 
 		templateDuplicated := `{
 	desc:     "duplicated %[2]v",
diff --git a/ignite/templates/typed/singleton/singleton.go b/ignite/templates/typed/singleton/singleton.go
index 28d280ec02..9a1e08c643 100644
--- a/ignite/templates/typed/singleton/singleton.go
+++ b/ignite/templates/typed/singleton/singleton.go
@@ -62,7 +62,7 @@ func NewGenerator(replacer placeholder.Replacer, opts *typed.Options) (*genny.Ge
 	g.RunFn(genesisTypesModify(opts))
 	g.RunFn(genesisModuleModify(replacer, opts))
 	g.RunFn(genesisTestsModify(replacer, opts))
-	g.RunFn(genesisTypesTestsModify(replacer, opts))
+	g.RunFn(genesisTypesTestsModify(opts))
 
 	// Modifications for new messages
 	if !opts.NoMessage {
@@ -332,7 +332,7 @@ func genesisTestsModify(replacer placeholder.Replacer, opts *typed.Options) genn
 	}
 }
 
-func genesisTypesTestsModify(replacer placeholder.Replacer, opts *typed.Options) genny.RunFn {
+func genesisTypesTestsModify(opts *typed.Options) genny.RunFn {
 	return func(r *genny.Runner) error {
 		path := filepath.Join(opts.AppPath, "x", opts.ModuleName, "types/genesis_test.go")
 		f, err := r.Disk.Find(path)
@@ -350,16 +350,20 @@ func genesisTypesTestsModify(replacer placeholder.Replacer, opts *typed.Options)
 			sampleFields += field.GenesisArgs(int(n.Int64()) + 1)
 		}
 
-		templateValid := `%[2]v: &types.%[2]v{
-		%[3]v},
-%[1]v`
-		replacementValid := fmt.Sprintf(
-			templateValid,
-			module.PlaceholderTypesGenesisValidField,
-			opts.TypeName.UpperCamel,
-			sampleFields,
+		// add parameter to the struct into the new method.
+		content, err := xast.ModifyFunction(
+			f.String(),
+			"TestGenesisState_Validate",
+			xast.AppendInsideFuncStruct(
+				"GenesisState",
+				opts.TypeName.UpperCamel,
+				fmt.Sprintf("&types.%[1]v{ %[2]v }", opts.TypeName.UpperCamel, sampleFields),
+				-1,
+			),
 		)
-		content := replacer.Replace(f.String(), module.PlaceholderTypesGenesisValidField, replacementValid)
+		if err != nil {
+			return err
+		}
 
 		newFile := genny.NewFileS(path, content)
 		return r.File(newFile)