diff --git a/scripts/install b/scripts/install
index 7dee89bd37919f6b9ba25a62e8b92dae16e1751b..d4be2c0bbe08ad17a49b39ab071f7257bada7bab 100755
--- a/scripts/install
+++ b/scripts/install
@@ -1,3 +1,9 @@
 #!/bin/bash -eux
 
-echo JWT_SECRET=`cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 18 | head -n 1` >> .env
+if [ -z "$JWT_SECRET" ]
+then
+  echo JWT_SECRET=`cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 18 | head -n 1` >> .env
+else
+  echo JWT_SECRET=$JWT_SECRET >> .env
+fi
+