diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44f1694f..4ba5c985 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -203,6 +203,7 @@ if (USE_IMGUI_GL3)
 else()
 	add_definitions(-DEU07_USEIMGUIIMPLOPENGL2)
 	set(SOURCES ${SOURCES} "imgui/imgui_impl_opengl2.cpp")
+	set_source_files_properties("imgui/imgui_impl_opengl2.cpp" PROPERTIES SKIP_PRECOMPILE_HEADERS TRUE)
 endif()
 
 if (WITH_UART)
@@ -353,6 +354,9 @@ if(NOT ${CMAKE_VERSION} VERSION_LESS "3.16.0")
 
 	if (USE_PCH)
 		target_precompile_headers(${PROJECT_NAME} PRIVATE "$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_CURRENT_SOURCE_DIR}/stdafx.h>")
+		set_source_files_properties("ref/glad/src/glad.c" "ref/dds-ktx/src/dds-ktx.c" "stb/stb_image.c"
+			"imgui/imgui.cpp" "imgui/imgui_demo.cpp" "imgui/imgui_draw.cpp" "imgui/imgui_widgets.cpp" "imgui/imgui_impl_glfw.cpp"
+			PROPERTIES SKIP_PRECOMPILE_HEADERS TRUE)
 	endif()
 endif()
 
diff --git a/imgui/imgui_demo.cpp b/imgui/imgui_demo.cpp
index 97a14e82..df875b23 100644
--- a/imgui/imgui_demo.cpp
+++ b/imgui/imgui_demo.cpp
@@ -53,8 +53,6 @@ Index of this file:
 
 */
 
-#include "stdafx.h"
-
 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 #define _CRT_SECURE_NO_WARNINGS
 #endif
diff --git a/imgui/imgui_widgets.cpp b/imgui/imgui_widgets.cpp
index 5b176d33..f4d611d9 100644
--- a/imgui/imgui_widgets.cpp
+++ b/imgui/imgui_widgets.cpp
@@ -28,7 +28,6 @@ Index of this file:
 
 */
 
-#include "stdafx.h"
 #ifdef DBG_NEW
 #undef new
 #endif