diff --git a/src/main/resources/assets/genetics/lang/en_US.lang b/src/main/resources/assets/genetics/lang/en_US.lang
index 5a165ded..68ffecae 100644
--- a/src/main/resources/assets/genetics/lang/en_US.lang
+++ b/src/main/resources/assets/genetics/lang/en_US.lang
@@ -27,7 +27,9 @@ genetics.item.database.1.name=Master Gene Database
 genetics.item.registry.0.name=Registry
 genetics.item.registry.1.name=Master Registry
 genetics.item.serum.name=%s Serum
+genetics.item.serum.empty=Empty Serum
 genetics.item.serumArray.name=%s Serum Array
+genetics.item.serumArray.empty=Empty Serum Array
 
 genetics.item.sequence=DNA Sequence
 genetics.item.sequence.0=Very Faint