diff --git a/hw/xfree86/common/xf86Build.sh b/hw/xfree86/common/xf86Build.sh
index e1b14cec5..5f859a5d8 100755
--- a/hw/xfree86/common/xf86Build.sh
+++ b/hw/xfree86/common/xf86Build.sh
@@ -10,4 +10,4 @@ fi
 
 output=$1
 echo "#define BUILD_DATE $BUILD_DATE" > $output
-echo "#define BUILD_TIME $BUILD_TIME" > $output
+echo "#define BUILD_TIME $BUILD_TIME" >> $output