diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1cfda10..d8a4646 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,7 +23,7 @@ if(PYTHONINTERP_FOUND)
 	add_custom_command(
 		OUTPUT ${GIT_VERSION_TMP_FILE}
 		COMMAND ${CMAKE_COMMAND} -E echo "//File generated by CMake. Do not edit!" > ${GIT_VERSION_TMP_FILE}
-		COMMAND ${CMAKE_COMMAND} -E echo "#define GIT_TAG_NAME v1.5"
+		COMMAND ${CMAKE_COMMAND} -E echo "#define GIT_TAG_NAME v1.5" > ${GIT_VERSION_TMP_FILE}
 		COMMAND ${CMAKE_COMMAND} -E copy_if_different ${GIT_VERSION_TMP_FILE} ${GIT_VERSION_FILE}
 		COMMAND ${CMAKE_COMMAND} -E remove ${GIT_VERSION_TMP_FILE}
 		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
@@ -34,7 +34,7 @@ elseif(UNIX)
 	add_custom_command(
 		OUTPUT ${GIT_VERSION_TMP_FILE}
 		COMMAND ${CMAKE_COMMAND} -E echo "//File generated by CMake. Do not edit!" > ${GIT_VERSION_TMP_FILE}
-		COMMAND ${CMAKE_COMMAND} -E echo "#define GIT_TAG_NAME v1.5"
+		COMMAND ${CMAKE_COMMAND} -E echo "#define GIT_TAG_NAME v1.5" > ${GIT_VERSION_TMP_FILE}
 		COMMAND ${CMAKE_COMMAND} -E copy_if_different ${GIT_VERSION_TMP_FILE} ${GIT_VERSION_FILE}
 		COMMAND ${CMAKE_COMMAND} -E remove ${GIT_VERSION_TMP_FILE}
 		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}