diff --git a/.github/workflows/ubuntu-cpu.yml b/.github/workflows/ubuntu-cpu.yml
index 9c69ce7..fab6218 100644
--- a/.github/workflows/ubuntu-cpu.yml
+++ b/.github/workflows/ubuntu-cpu.yml
@@ -87,7 +87,8 @@ jobs:
             -DCMAKE_C_COMPILER_LAUNCHER=$(which ccache) \
             -DCMAKE_CXX_COMPILER_LAUNCHER=$(which ccache) \
             -DCMAKE_PREFIX_PATH=${{ github.workspace }}/libtorch \
-            -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install
+            -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install \
+            -DOPENSPLAT_BUILD_SIMPLE_TRAINER=ON
           ninja
 
       - name: Clean Compiler Cache
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e5f4b8..7187429 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -86,6 +86,9 @@ add_executable(opensplat opensplat.cpp point_io.cpp nerfstudio.cpp model.cpp kdt
 set_property(TARGET opensplat PROPERTY CXX_STANDARD 17)
 target_include_directories(opensplat PRIVATE ${PROJECT_SOURCE_DIR}/vendor/glm ${GPU_INCLUDE_DIRS})
 target_link_libraries(opensplat PUBLIC ${STDPPFS_LIBRARY} ${GPU_LIBRARIES} ${GSPLAT_LIBS} ${TORCH_LIBRARIES} ${OpenCV_LIBS})
+if (NOT WIN32)
+    target_link_libraries(opensplat PUBLIC pthread)
+endif()
 if(GPU_RUNTIME STREQUAL "HIP")
     target_compile_definitions(opensplat PRIVATE USE_HIP __HIP_PLATFORM_AMD__)
 elseif(GPU_RUNTIME STREQUAL "CUDA")
@@ -96,6 +99,9 @@ if(OPENSPLAT_BUILD_SIMPLE_TRAINER)
     add_executable(simple_trainer simple_trainer.cpp project_gaussians.cpp rasterize_gaussians.cpp cv_utils.cpp)
     target_include_directories(simple_trainer PRIVATE ${PROJECT_SOURCE_DIR}/vendor/glm ${GPU_INCLUDE_DIRS})
     target_link_libraries(simple_trainer PUBLIC ${GPU_LIBRARIES} ${GSPLAT_LIBS} ${TORCH_LIBRARIES} ${OpenCV_LIBS})
+    if (NOT WIN32)
+        target_link_libraries(opensplat PUBLIC pthread)
+    endif()
     set_property(TARGET simple_trainer PROPERTY CXX_STANDARD 17)
     if(GPU_RUNTIME STREQUAL "HIP")
         target_compile_definitions(simple_trainer PRIVATE USE_HIP __HIP_PLATFORM_AMD__)