diff --git a/app/components/Editor/Editor.js b/app/components/Editor/Editor.js
index fa6d92054..fd3b78c05 100644
--- a/app/components/Editor/Editor.js
+++ b/app/components/Editor/Editor.js
@@ -104,7 +104,7 @@ class Editor extends React.Component<Props> {
 }
 
 const StyledEditor = styled(RichMarkdownEditor)`
-  flex-grow: ${props => (props.grow ? 'initial' : '0')};
+  flex-grow: ${props => (props.grow ? 1 : 0)};
   justify-content: start;
 
   > div {
diff --git a/app/components/InputRich.js b/app/components/InputRich.js
index 2512ccc7b..9022a709e 100644
--- a/app/components/InputRich.js
+++ b/app/components/InputRich.js
@@ -51,6 +51,7 @@ class InputRich extends React.Component<Props> {
             <Editor
               onBlur={this.handleBlur}
               onFocus={this.handleFocus}
+              grow
               {...rest}
             />
           ) : (