diff --git a/SDKMacros.cmake b/SDKMacros.cmake
index 5d75c9e..c5ab609 100644
--- a/SDKMacros.cmake
+++ b/SDKMacros.cmake
@@ -9,12 +9,17 @@ macro(sdk_install _DIR _TARGET _H_FILES _QM_FILES)
 			qt_install(TARGETS ${_TARGET} DESTINATION ${MINGW_LIB})
 			qt_install(TARGETS ${_TARGET} DESTINATION ${MINGW_BIN})
 			qt_install(TARGETS ${_TARGET} DESTINATION QtBin)
-			qt_install(FILES ${_QM_FILES} DESTINATION QtLang)
+			if(NOT "x${_QM_FILES}" STREQUAL "x")
+				qt_install(FILES ${_QM_FILES} DESTINATION QtLang)
+			endif()
 		else()
-			if (NOT _H_FILES STREQUAL "")
+			if (NOT "x${_H_FILES}" STREQUAL "x")
 				install(FILES ${_H_FILES} DESTINATION ${CMAKE_INSTALL_PREFIX}/include/${_DIR})
 			endif()
 			qt_install(TARGETS ${_TARGET} DESTINATION ${CMAKE_INSTALL_PREFIX}/lib)
+			if(NOT "x${_QM_FILES}" STREQUAL "x")
+				qt_install(FILES ${_QM_FILES} DESTINATION QtLang)
+			endif()
 		endif()
 		#message(STATUS "Install ${_TARGET} to system \"${CMAKE_INSTALL_PREFIX}\"")
 	else()