diff --git a/modules/TDEVersion.cmake b/modules/TDEVersion.cmake
index a222152..138e272 100644
--- a/modules/TDEVersion.cmake
+++ b/modules/TDEVersion.cmake
@@ -19,8 +19,11 @@ macro( tde_set_project_version )
 
   unset( VERSION )
 
-  file( STRINGS ${CMAKE_SOURCE_DIR}/.tdescminfo VERSION_STRING REGEX "^Version:.+$" )
-  string( REGEX REPLACE "^Version: (R[0-9]+\.[0-9]+\.[0-9]+.*)$" "\\1" VERSION "${VERSION_STRING}" )
+  if( EXISTS ${CMAKE_SOURCE_DIR}/.tdescminfo )
+    file( STRINGS ${CMAKE_SOURCE_DIR}/.tdescminfo VERSION_STRING REGEX "^Version:.+$" )
+    string( REGEX REPLACE "^Version: (R[0-9]+\.[0-9]+\.[0-9]+.*)$" "\\1" VERSION "${VERSION_STRING}" )
+  endif()
+
   if( NOT VERSION )
     set( VERSION "${DEFAULT_VERSION}" )
   endif()