diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78593cf..f49af9c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,7 +41,7 @@ foreach(HEADER_SOURCE ${SOURCES_INCLUDE})
 	add_library(${DLL_NAME} SHARED ${HEADER_SOURCE} ${SOURCES_SRC})
 	target_include_directories(${DLL_NAME} PUBLIC include)
 	if(MSVC)
-		target_compile_options(${DLL_NAME} PUBLIC "-FI ${HEADER_SOURCE}")
+		target_compile_options(${DLL_NAME} PUBLIC "-FI${HEADER_SOURCE}")
 		target_compile_definitions(${DLL_NAME} PUBLIC "-D${HEADER_NAME_UC}_EXTERN=__declspec(dllexport)" )
 	else()
 		target_compile_options(${DLL_NAME} PUBLIC -include ${HEADER_SOURCE} -fvisibility=hidden)