diff --git a/res/layout/calc_eight_digit_button.xml b/res/layout/calc_eight_digit_button.xml
index 3f67d691..11efb3e6 100644
--- a/res/layout/calc_eight_digit_button.xml
+++ b/res/layout/calc_eight_digit_button.xml
@@ -10,7 +10,7 @@
 													   xmlns:calc="http://schemas.android.com/apk/res/org.solovyev.android.calculator"
 													   a:id="@+id/eightDigitButton" a:text="8"
 													   calc:textUp="ln"
-													   calc:textDown=""
+													   calc:textDown="log"
 													   calc:directionTextScale="0.5"
 
 													   style="?digitButtonStyle"