diff --git a/src/IO.Ably.NETFramework/IO.Ably.NETFramework.csproj b/src/IO.Ably.NETFramework/IO.Ably.NETFramework.csproj
index ed6db5d8f..a44c0e033 100644
--- a/src/IO.Ably.NETFramework/IO.Ably.NETFramework.csproj
+++ b/src/IO.Ably.NETFramework/IO.Ably.NETFramework.csproj
@@ -28,6 +28,7 @@
..\IO.Ably.ruleset
false
bin\Debug\IO.Ably.xml
+ NU1903
pdbonly