diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7881ea269..3fcfe32c8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -95,7 +95,7 @@ ENDIF()
 SET( TOMAHAWK_VERSION_TMP "${TOMAHAWK_VERSION_MAJOR}.${TOMAHAWK_VERSION_MINOR}.${TOMAHAWK_VERSION_PATCH}")
 SET( TOMAHAWK_VERSION_SHORT "${TOMAHAWK_VERSION_TMP}" )
 IF( TOMAHAWK_VERSION_RC )
-  SET( TOMAHAWK_VERSION "${TOMAHAWK_VERSION_TMP}rc${TOMAHAWK_VERSION_RC}" CACHE STRING "Tomahawk Version")
+  SET( TOMAHAWK_VERSION_TMP "${TOMAHAWK_VERSION_TMP}rc${TOMAHAWK_VERSION_RC}")
 ENDIF()
 
 # additional info for non-release builds
@@ -103,7 +103,7 @@ IF( NOT BUILD_RELEASE AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git/" )
     INCLUDE( CMakeDateStamp )
     SET( TOMAHAWK_VERSION_DATE "${CMAKE_DATESTAMP_YEAR}${CMAKE_DATESTAMP_MONTH}${CMAKE_DATESTAMP_DAY}" )
     IF( TOMAHAWK_VERSION_DATE GREATER 0 )
-        SET( TOMAHAWK_VERSION_TMP ${TOMAHAWK_VERSION}.${TOMAHAWK_VERSION_DATE} )
+        SET( TOMAHAWK_VERSION_TMP ${TOMAHAWK_VERSION_TMP}.${TOMAHAWK_VERSION_DATE} )
     ENDIF()
 
     INCLUDE( CMakeVersionSource )