diff --git a/cmake/version.cmake.in b/cmake/version.cmake.in
--- a/cmake/version.cmake.in
+++ b/cmake/version.cmake.in
@@ -1,2 +1,1 @@
-SET(PROJECT_NAME "@PACKAGE_NAME@")
-SET(PROJECT_VERSION "@PACKAGE_VERSION@" CACHE STRING "LEMON version string.")
+SET(LEMON_VERSION "@PACKAGE_VERSION@" CACHE STRING "LEMON version string.")