diff --git a/packages/core/client/src/collection-manager/interfaces/m2m.tsx b/packages/core/client/src/collection-manager/interfaces/m2m.tsx
index 2a6bb9a1e1..033806b2ff 100644
--- a/packages/core/client/src/collection-manager/interfaces/m2m.tsx
+++ b/packages/core/client/src/collection-manager/interfaces/m2m.tsx
@@ -389,7 +389,7 @@ export class M2MFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 sourceKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Source key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'SourceKey',
@@ -454,7 +454,7 @@ export class M2MFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 targetKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Target key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'TargetKey',
diff --git a/packages/core/client/src/collection-manager/interfaces/m2o.tsx b/packages/core/client/src/collection-manager/interfaces/m2o.tsx
index 7ce50e2376..634fc328c4 100644
--- a/packages/core/client/src/collection-manager/interfaces/m2o.tsx
+++ b/packages/core/client/src/collection-manager/interfaces/m2o.tsx
@@ -319,7 +319,7 @@ export class M2OFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 targetKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Target key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'TargetKey',
diff --git a/packages/core/client/src/collection-manager/interfaces/o2m.tsx b/packages/core/client/src/collection-manager/interfaces/o2m.tsx
index f8e7305df3..945ae4afc1 100644
--- a/packages/core/client/src/collection-manager/interfaces/o2m.tsx
+++ b/packages/core/client/src/collection-manager/interfaces/o2m.tsx
@@ -323,7 +323,7 @@ export class O2MFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 sourceKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Source key")}}',
                   default: 'id',
                   enum: [{ label: 'ID', value: 'id' }],
@@ -366,7 +366,7 @@ export class O2MFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 targetKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Target key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'TargetKey',
diff --git a/packages/core/client/src/collection-manager/interfaces/o2o.tsx b/packages/core/client/src/collection-manager/interfaces/o2o.tsx
index 0fe3ebd826..02c7ff142a 100644
--- a/packages/core/client/src/collection-manager/interfaces/o2o.tsx
+++ b/packages/core/client/src/collection-manager/interfaces/o2o.tsx
@@ -646,7 +646,7 @@ export class O2OFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 sourceKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Source key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'SourceKey',
@@ -825,7 +825,7 @@ export class OHOFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 sourceKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Source key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'SourceKey',
@@ -1018,7 +1018,7 @@ export class OBOFieldInterface extends CollectionFieldInterface {
               'x-component': 'Grid.Col',
               properties: {
                 targetKey: {
-                  type: 'void',
+                  type: 'string',
                   title: '{{t("Target key")}}',
                   'x-decorator': 'FormItem',
                   'x-component': 'TargetKey',