diff --git a/src/tests/JIT/jit64/jit64_3.csproj b/src/tests/JIT/jit64/jit64_3.csproj
index d33a0a695ffb9..acc0c6624a1c8 100644
--- a/src/tests/JIT/jit64/jit64_3.csproj
+++ b/src/tests/JIT/jit64/jit64_3.csproj
@@ -1,10 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
-    <!-- Issue: https://github.com/dotnet/runtime/issues/87879 -->
-    <ProjectsToSkip Include="opt/rngchk/RngchkStress2_o.csproj" />
-    <ProjectsToSkip Include="opt/cse/hugeSimpleExpr1.csproj" />
-
-    <MergedWrapperProjectReference Include="opt/**/*.??proj" Exclude="@(ProjectsToSkip)" />
+    <MergedWrapperProjectReference Include="opt/**/*.??proj" />
   </ItemGroup>
 
   <Import Project="$(TestSourceDir)MergedTestRunner.targets" />
diff --git a/src/tests/JIT/jit64/opt/cse/hugeSimpleExpr1.csproj b/src/tests/JIT/jit64/opt/cse/hugeSimpleExpr1.csproj
index b32d6d0b3059b..8119c825171d4 100644
--- a/src/tests/JIT/jit64/opt/cse/hugeSimpleExpr1.csproj
+++ b/src/tests/JIT/jit64/opt/cse/hugeSimpleExpr1.csproj
@@ -4,6 +4,8 @@
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <!-- Timeout on Arm64 -->
     <GCStressIncompatible>true</GCStressIncompatible>
+    <!-- Issue: https://github.com/dotnet/runtime/issues/87879 -->
+    <DisableProjectBuild>true</DisableProjectBuild>
   </PropertyGroup>
   <PropertyGroup>
     <DebugType>Full</DebugType>
diff --git a/src/tests/JIT/jit64/opt/rngchk/RngchkStress2_o.csproj b/src/tests/JIT/jit64/opt/rngchk/RngchkStress2_o.csproj
index 24e01e4305a86..1b64102b66d95 100644
--- a/src/tests/JIT/jit64/opt/rngchk/RngchkStress2_o.csproj
+++ b/src/tests/JIT/jit64/opt/rngchk/RngchkStress2_o.csproj
@@ -2,6 +2,8 @@
   <PropertyGroup>
     <DebugType>PdbOnly</DebugType>
     <Optimize>True</Optimize>
+    <!-- Issue: https://github.com/dotnet/runtime/issues/87879 -->
+    <DisableProjectBuild>true</DisableProjectBuild>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="RngchkStress2.cs" />