diff --git a/bin/crystal b/bin/crystal
index 98e33f42f962..08df2485ee2c 100755
--- a/bin/crystal
+++ b/bin/crystal
@@ -189,6 +189,7 @@ esac
 # CRYSTAL_EXEC_PATH determines the location of the `crystal` program for external
 # compiler commands.
 CRYSTAL_EXEC_PATH="$SCRIPT_ROOT"
+export CRYSTAL_EXEC_PATH
 
 if [ -x "$CRYSTAL_DIR/${CRYSTAL_BIN}" ]; then
   __warning_msg "Using compiled compiler at ${CRYSTAL_DIR#"$PWD/"}/${CRYSTAL_BIN}"