diff --git a/Installation/cmake/modules/FindIPE.cmake b/Installation/cmake/modules/FindIPE.cmake
index a5e98915c54..1274ec3adad 100644
--- a/Installation/cmake/modules/FindIPE.cmake
+++ b/Installation/cmake/modules/FindIPE.cmake
@@ -37,6 +37,9 @@ else()
 
   if(IPE_INCLUDE_DIR AND IPE_LIBRARY)
     set(IPE_FOUND TRUE)
+    if (NOT IPE_VERSION)
+      set(IPE_VERSION "AUTODETECT")
+    endif()
     if (${IPE_VERSION} STREQUAL "AUTODETECT")
       FILE(READ "${IPE_INCLUDE_DIR}/ipebase.h" IPEBASE_H)
       STRING(REGEX MATCH "IPELIB_VERSION[ ]*=[ ]*([67])([0-9][0-9])([0-9][0-9]);" found_ipe_version "${IPEBASE_H}")