diff --git a/.travis.yml b/.travis.yml
index 8c10381..b29790e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: php
+dist: trusty
 
 php:
   - 5.4
@@ -7,6 +8,7 @@ php:
   - 7.0
   - 7.1
   - 7.2
+  - 7.4
 
 before_script:
   - composer install --prefer-source
diff --git a/src/ByteUnits/PowerScale.php b/src/ByteUnits/PowerScale.php
index 3240709..8063d70 100644
--- a/src/ByteUnits/PowerScale.php
+++ b/src/ByteUnits/PowerScale.php
@@ -30,7 +30,7 @@ public function scaleFromUnit($quantity, $unit)
         return $quantity * bcpow(
             $this->base,
             $this->scale[$unit],
-            $this->precision
+            0
         );
     }