diff --git a/cmake/Findthrust.cmake b/cmake/Findthrust.cmake
index 2837f84e6..70399fb97 100644
--- a/cmake/Findthrust.cmake
+++ b/cmake/Findthrust.cmake
@@ -12,7 +12,7 @@ if(THRUST_INCLUDE_DIR)
          THRUST_VERSION_STRING
          REGEX "#define THRUST_VERSION[ \t]+([0-9x]+)")
 
-    string(REGEX REPLACE "#define THRUST_VERSION[ \t]+" "" THRUST_VERSION_STRING ${THRUST_VERSION_STRING})
+    string(REGEX REPLACE "#define THRUST_VERSION[ \t]+([0-9]+).*" "\\1" THRUST_VERSION_STRING ${THRUST_VERSION_STRING})
 
     math(EXPR THRUST_VERSION_MAJOR "${THRUST_VERSION_STRING} / 100000")
     math(EXPR THRUST_VERSION_MINOR "(${THRUST_VERSION_STRING} / 100) % 1000")