diff --git a/src/UI/Components/INumericInput.tsx b/src/UI/Components/INumericInput.tsx
index 7734dac44..759251d03 100644
--- a/src/UI/Components/INumericInput.tsx
+++ b/src/UI/Components/INumericInput.tsx
@@ -83,7 +83,8 @@ export class INumericInput extends React.Component<INumericInputProps, {}>
                             return;
                         }
                         this._Value = parseFloat(FixedNotZero(num, this._Float));
-                        this.props.onValueChange(num, value, e);
+                        if (this.props.onValueChange)
+                            this.props.onValueChange(num, value, e);
                         this._isPopoverOpen = false;
                     }}
                     onFocus={(e) =>