diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index fbe4c87..33ef668 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -9,7 +9,7 @@
     <Nullable>enable</Nullable>
     <NoWarn>$(NoWarn);NU5104</NoWarn>
     <SignAssembly>true</SignAssembly>
-    <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)\spectre.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)spectre.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
 
   <PropertyGroup Label="Deterministic Build" Condition="'$(GITHUB_ACTIONS)' == 'true'">