diff --git a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
index 3106213..28ceacd 100644
--- a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
+++ b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
@@ -176,6 +176,9 @@
False
..\..\..\PlugInPlatform\Mesnac.PlugIn.dll
+
+ ..\..\Microsoft.Office.Interop.Excel.dll
+
@@ -219,6 +222,8 @@
+
+