diff --git a/simapp/app_test.go b/simapp/app_test.go
index 7dd4f73917..72acc777d9 100644
--- a/simapp/app_test.go
+++ b/simapp/app_test.go
@@ -106,7 +106,7 @@ func TestRunMigrations(t *testing.T) {
 	testCases := []struct {
 		name         string
 		moduleName   string
-		forVersion   uint64
+		fromVersion  uint64
 		expRegErr    bool // errors while registering migration
 		expRegErrMsg string
 		expRunErr    bool // errors while running migration
@@ -134,7 +134,7 @@ func TestRunMigrations(t *testing.T) {
 			false, "", false, "", 1,
 		},
 		{
-			"cannot register migration handler for same module & forVersion",
+			"cannot register migration handler for same module & fromVersion",
 			"bank", 1,
 			true, "another migration for module bank and version 1 already exists: internal logic error", false, "", 0,
 		},
@@ -151,8 +151,8 @@ func TestRunMigrations(t *testing.T) {
 			called := 0
 
 			if tc.moduleName != "" {
-				// Register migration for module from version `forVersion` to `forVersion+1`.
-				err = app.configurator.RegisterMigration(tc.moduleName, tc.forVersion, func(sdk.Context) error {
+				// Register migration for module from version `fromVersion` to `fromVersion+1`.
+				err = app.configurator.RegisterMigration(tc.moduleName, tc.fromVersion, func(sdk.Context) error {
 					called++
 
 					return nil
diff --git a/types/module/configurator.go b/types/module/configurator.go
index 07c3b50942..c0b25a82e9 100644
--- a/types/module/configurator.go
+++ b/types/module/configurator.go
@@ -26,14 +26,14 @@ type Configurator interface {
 
 	// RegisterMigration registers an in-place store migration for a module. The
 	// handler is a migration script to perform in-place migrations from version
-	// `forVersion` to version `forVersion+1`.
+	// `fromVersion` to version `fromVersion+1`.
 	//
 	// EACH TIME a module's ConsensusVersion increments, a new migration MUST
 	// be registered using this function. If a migration handler is missing for
 	// a particular function, the upgrade logic (see RunMigrations function)
 	// will panic. If the ConsensusVersion bump does not introduce any store
 	// changes, then a no-op function must be registered here.
-	RegisterMigration(moduleName string, forVersion uint64, handler MigrationHandler) error
+	RegisterMigration(moduleName string, fromVersion uint64, handler MigrationHandler) error
 }
 
 type configurator struct {
@@ -41,7 +41,7 @@ type configurator struct {
 	msgServer   grpc.Server
 	queryServer grpc.Server
 
-	// migrations is a map of moduleName -> forVersion -> migration script handler
+	// migrations is a map of moduleName -> fromVersion -> migration script handler
 	migrations map[string]map[uint64]MigrationHandler
 }
 
@@ -68,8 +68,8 @@ func (c configurator) QueryServer() grpc.Server {
 }
 
 // RegisterMigration implements the Configurator.RegisterMigration method
-func (c configurator) RegisterMigration(moduleName string, forVersion uint64, handler MigrationHandler) error {
-	if forVersion == 0 {
+func (c configurator) RegisterMigration(moduleName string, fromVersion uint64, handler MigrationHandler) error {
+	if fromVersion == 0 {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidVersion, "module migration versions should start at 1")
 	}
 
@@ -77,11 +77,11 @@ func (c configurator) RegisterMigration(moduleName string, forVersion uint64, ha
 		c.migrations[moduleName] = map[uint64]MigrationHandler{}
 	}
 
-	if c.migrations[moduleName][forVersion] != nil {
-		return sdkerrors.Wrapf(sdkerrors.ErrLogic, "another migration for module %s and version %d already exists", moduleName, forVersion)
+	if c.migrations[moduleName][fromVersion] != nil {
+		return sdkerrors.Wrapf(sdkerrors.ErrLogic, "another migration for module %s and version %d already exists", moduleName, fromVersion)
 	}
 
-	c.migrations[moduleName][forVersion] = handler
+	c.migrations[moduleName][fromVersion] = handler
 
 	return nil
 }