diff --git a/ui/app/pages/swaps/slippage-buttons/slippage-buttons.js b/ui/app/pages/swaps/slippage-buttons/slippage-buttons.js
index 839074f8f..d45530a9f 100644
--- a/ui/app/pages/swaps/slippage-buttons/slippage-buttons.js
+++ b/ui/app/pages/swaps/slippage-buttons/slippage-buttons.js
@@ -74,7 +74,7 @@ export default function SlippageButtons ({
               </Button>
               <Button
                 onClick={() => {
-                  setCustomValue(undefined)
+                  setCustomValue('')
                   setEnteringCustomValue(false)
                   setActiveButtonIndex(1)
                   onSelect(2)
@@ -108,12 +108,12 @@ export default function SlippageButtons ({
                         ref={setInputRef}
                         onBlur={() => {
                           setEnteringCustomValue(false)
-                          if (customValue === '' || customValue === '0') {
-                            setCustomValue(null)
+                          if (customValue === '0') {
+                            setCustomValue('')
                             setActiveButtonIndex(1)
                           }
                         }}
-                        value={customValue}
+                        value={customValue || ''}
                       />
                     </div>
                   )