diff --git a/packages/ra-input-rich-text/src/index.js b/packages/ra-input-rich-text/src/index.js
index f12d29bff57..5a0a209d0a2 100644
--- a/packages/ra-input-rich-text/src/index.js
+++ b/packages/ra-input-rich-text/src/index.js
@@ -71,7 +71,7 @@ export class RichTextInput extends Component {
                 className="ra-rich-text-input"
             >
                 <div ref={this.updateDivRef} />
-                {error && <FormHelperText>{error}</FormHelperText>}
+                {error && <FormHelperText error>{error}</FormHelperText>}
                 {helperText && <FormHelperText>{helperText}</FormHelperText>}
             </FormControl>
         );
diff --git a/packages/ra-ui-materialui/src/input/CheckboxGroupInput.js b/packages/ra-ui-materialui/src/input/CheckboxGroupInput.js
index bc07654bb96..79731da11af 100644
--- a/packages/ra-ui-materialui/src/input/CheckboxGroupInput.js
+++ b/packages/ra-ui-materialui/src/input/CheckboxGroupInput.js
@@ -177,7 +177,8 @@ export class CheckboxGroupInput extends Component {
                     />
                 </FormLabel>
                 <FormGroup row>{choices.map(this.renderCheckbox)}</FormGroup>
-                {touched && error && <FormHelperText>{error}</FormHelperText>}
+                {touched &&
+                    error && <FormHelperText error>{error}</FormHelperText>}
                 {helperText && <FormHelperText>{helperText}</FormHelperText>}
             </FormControl>
         );
diff --git a/packages/ra-ui-materialui/src/input/RadioButtonGroupInput.js b/packages/ra-ui-materialui/src/input/RadioButtonGroupInput.js
index a4d756e037b..b53f3ec8d5a 100644
--- a/packages/ra-ui-materialui/src/input/RadioButtonGroupInput.js
+++ b/packages/ra-ui-materialui/src/input/RadioButtonGroupInput.js
@@ -159,7 +159,8 @@ export class RadioButtonGroupInput extends Component {
                 >
                     {choices.map(this.renderRadioButton)}
                 </RadioGroup>
-                {touched && error && <FormHelperText>{error}</FormHelperText>}
+                {touched &&
+                    error && <FormHelperText error>{error}</FormHelperText>}
                 {helperText && <FormHelperText>{helperText}</FormHelperText>}
             </FormControl>
         );
diff --git a/packages/ra-ui-materialui/src/input/SelectArrayInput.js b/packages/ra-ui-materialui/src/input/SelectArrayInput.js
index f9a9b8207ba..2ef0398a347 100644
--- a/packages/ra-ui-materialui/src/input/SelectArrayInput.js
+++ b/packages/ra-ui-materialui/src/input/SelectArrayInput.js
@@ -232,7 +232,8 @@ export class SelectArrayInput extends Component {
                 >
                     {choices.map(this.renderMenuItem)}
                 </Select>
-                {touched && error && <FormHelperText>{error}</FormHelperText>}
+                {touched &&
+                    error && <FormHelperText error>{error}</FormHelperText>}
                 {helperText && <FormHelperText>{helperText}</FormHelperText>}
             </FormControl>
         );