diff --git a/opr/params.py b/opr/params.py
index ef35e30..45bdd49 100644
--- a/opr/params.py
+++ b/opr/params.py
@@ -23,4 +23,4 @@
 PRIMER_NOT_REMOVABLE_ATTRIBUTE_ERROR = "This attribute is not removable."
 
 PRIMER_ADDITION_ERROR = "You can only add two Primer objects togather (which will lead to a new Primer with the concatenated sequence)."
-PRIMER_MULTIPICATION_ERROR = "Primer sequence can only get multipied by integer."
\ No newline at end of file
+PRIMER_MULTIPICATION_ERROR = "Primer sequence can only get multipied by integer."