diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2f1931fe1..ea8ef4f87 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,15 +30,16 @@ jobs:
       run: |
         sudo apt-get update
         sudo apt-get install -y --fix-missing libx11-dev libxcursor-dev libxinerama-dev build-essential gettext libtool libtool-bin libpulse-dev libasound2-dev libjack-dev portaudio19-dev libwayland-dev
+        sudo apt-get install gdb
     - name: Build
       run: |
         ./GenerateProjectFiles.sh -vs2022 -log -verbose -printSDKs -dotnet=8 -useSdl=false
-        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -dotnet=8 -arch=x64 -platform=Linux -configuration=Development -buildtargets=FlaxTestsTarget -UseLargeWorlds=true -useSdl=false
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -dotnet=8 -arch=x64 -platform=Linux -configuration=Debug -buildtargets=FlaxTestsTarget -UseLargeWorlds=true -useSdl=false
         dotnet msbuild Source/Tools/Flax.Build.Tests/Flax.Build.Tests.csproj /m /t:Restore,Build /p:Configuration=Debug /p:Platform=AnyCPU /nologo
         dotnet msbuild Source/Tools/Flax.Build.Tests/Flax.Build.Tests.csproj /m /t:Restore,Build /p:Configuration=Debug /p:Platform=AnyCPU /nologo
     - name: Test
       run: |
-        gdb ${GITHUB_WORKSPACE}/Binaries/Editor/Linux/Development/FlaxTests
+        gdb ${GITHUB_WORKSPACE}/Binaries/Editor/Linux/Debug/FlaxTests
         dotnet test -f net8.0 Binaries/Tests/Flax.Build.Tests.dll
         cp Binaries/Editor/Linux/Development/FlaxEngine.CSharp.dll Binaries/Tests
         cp Binaries/Editor/Linux/Development/FlaxEngine.CSharp.runtimeconfig.json Binaries/Tests
diff --git a/Source/Tools/Flax.Build/Platforms/Linux/LinuxToolchain.cs b/Source/Tools/Flax.Build/Platforms/Linux/LinuxToolchain.cs
index f2d60548a..65283e894 100644
--- a/Source/Tools/Flax.Build/Platforms/Linux/LinuxToolchain.cs
+++ b/Source/Tools/Flax.Build/Platforms/Linux/LinuxToolchain.cs
@@ -142,7 +142,7 @@ namespace Flax.Build.Platforms
             args.Add("-lX11");
             args.Add("-lXcursor");
             args.Add("-lXinerama");
-            /*args.Add("-lXfixes");
+            args.Add("-lXfixes");
 
             if (EngineConfiguration.WithSDL(options))
             {
@@ -153,7 +153,7 @@ namespace Flax.Build.Platforms
                 args.Add("-lglib-2.0");
                 args.Add("-lgio-2.0");
                 args.Add("-lgobject-2.0");
-            }*/
+            }
         }
 
         /// <inheritdoc />