diff --git a/Directory.Build.props b/Directory.Build.props
index 4f9312803f0309..c2bafd4f0065c7 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -115,7 +115,7 @@
     <MonoAOTCompilerTasksAssemblyPath>$([MSBuild]::NormalizePath('$(MonoAOTCompilerDir)', 'MonoAOTCompiler.dll'))</MonoAOTCompilerTasksAssemblyPath>
     <MonoTargetsTasksAssemblyPath>$([MSBuild]::NormalizePath('$(MonoTargetsTasksDir)', 'MonoTargetsTasks.dll'))</MonoTargetsTasksAssemblyPath>
     <TestExclusionListTasksAssemblyPath>$([MSBuild]::NormalizePath('$(TestExclusionListTasksDir)', 'TestExclusionListTasks.dll'))</TestExclusionListTasksAssemblyPath>
-    <ILAsmToolPath Condition="'$(DotNetBuildFromSource)' == 'true'">$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'coreclr', '$(TargetOS).$(TargetArchitecture).$(Configuration)'))</ILAsmToolPath>
+    <ILAsmToolPath Condition="'$(DotNetBuildFromSource)' == 'true' or '$(BuildArchitecture)' == 's390x'">$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'coreclr', '$(TargetOS).$(TargetArchitecture).$(Configuration)'))</ILAsmToolPath>
   </PropertyGroup>
 
   <PropertyGroup Label="CalculateConfiguration">