diff --git a/src/components/AttachmentModal.js b/src/components/AttachmentModal.js
index 7895b119b726e..14b80f5f1a49c 100755
--- a/src/components/AttachmentModal.js
+++ b/src/components/AttachmentModal.js
@@ -278,7 +278,7 @@ class AttachmentModal extends PureComponent {
                         <Animated.View style={StyleUtils.fade(this.state.confirmButtonFadeAnimation)}>
                             <Button
                                 success
-                                style={[styles.buttonConfirm]}
+                                style={[styles.buttonConfirm, this.props.isSmallScreenWidth ? {} : styles.attachmentButtonBigScreen]}
                                 textStyles={[styles.buttonConfirmText]}
                                 text={this.props.translate('common.send')}
                                 onPress={this.submitAndClose}
diff --git a/src/components/Button.js b/src/components/Button.js
index 5d7f785ac0b73..5a1d54ff206a7 100644
--- a/src/components/Button.js
+++ b/src/components/Button.js
@@ -144,7 +144,6 @@ const defaultProps = {
 class Button extends Component {
     constructor(props) {
         super(props);
-        this.additionalStyles = StyleUtils.parseStyleAsArray(this.props.style);
 
         this.renderContent = this.renderContent.bind(this);
     }
@@ -256,7 +255,7 @@ class Button extends Component {
                 disabled={this.props.isLoading || this.props.isDisabled}
                 style={[
                     this.props.isDisabled ? {...styles.cursorDisabled, ...styles.noSelect} : {},
-                    ...this.additionalStyles,
+                    ...StyleUtils.parseStyleAsArray(this.props.style),
                 ]}
                 nativeID={this.props.nativeID}
             >
diff --git a/src/styles/styles.js b/src/styles/styles.js
index f492b7cf0b190..7d63f993f8313 100644
--- a/src/styles/styles.js
+++ b/src/styles/styles.js
@@ -473,6 +473,11 @@ const styles = {
         margin: 20,
     },
 
+    attachmentButtonBigScreen: {
+        minWidth: 300,
+        alignSelf: 'center',
+    },
+
     buttonConfirmText: {
         paddingLeft: 20,
         paddingRight: 20,