diff --git a/jbuild b/jbuild
index 75b4c96cb..ea8e23449 100644
--- a/jbuild
+++ b/jbuild
@@ -1,2 +1,2 @@
 
-(jbuild_version jane_street)
+(jbuild_version 1)
diff --git a/src/jbuild b/src/jbuild
index e9c94d67c..6c9d6e805 100644
--- a/src/jbuild
+++ b/src/jbuild
@@ -5,4 +5,4 @@
   (libraries (ppx_core ppx_driver))
   (preprocess no_preprocessing)))
 
-(jbuild_version jane_street)
+(jbuild_version 1)
diff --git a/test/jbuild b/test/jbuild
index c9e1275e3..776c2febc 100644
--- a/test/jbuild
+++ b/test/jbuild
@@ -3,4 +3,4 @@
   (preprocess (pps (ppx_let ppx_driver.runner)))))
 
 
-(jbuild_version jane_street)
+(jbuild_version 1)