diff --git a/cmake/modules/packages/FindSPATIALITE.cmake b/cmake/modules/packages/FindSPATIALITE.cmake
index fa72773..813cca3 100644
--- a/cmake/modules/packages/FindSPATIALITE.cmake
+++ b/cmake/modules/packages/FindSPATIALITE.cmake
@@ -64,7 +64,7 @@ if(SPATIALITE_LIBRARY AND SPATIALITE_INCLUDE_DIR
    AND NOT SPATIALITE_VERSION_STRING)
     file(STRINGS "${SPATIALITE_INCLUDE_DIR}/spatialite.h" _spatialite_h_ver
          REGEX "^[ \t]version[ \t]([0-9]+\\.[0-9]+),.*")
-    string(REGEX REPLACE "[ \t]version[ \t]([0-9]+\\.[0-9]+),.*" "\\1" _spatialite_h_ver ${_spatialite_h_ver})
+    string(REGEX REPLACE "[ \t]version[ \t]([0-9]+\\.[0-9]+),.*" "\\1" _spatialite_h_ver "${_spatialite_h_ver}")
     set(SPATIALITE_VERSION_STRING "${_spatialite_h_ver}")
 endif()