diff --git a/build.nims b/build.nims
deleted file mode 100644
index c5924a3..0000000
--- a/build.nims
+++ /dev/null
@@ -1,8 +0,0 @@
-import std/os
-
-task genffi, "update the nim ffi bindings":
-  exec "cargo install --git https://github.com/arnetheduck/nbindgen#e80a85f1505d78eeae78ce33b6f406603be27d35 nbindgen"
-  exec "nbindgen -c ./cbindgen.toml vendor/circom-compat-ffi --output circomcompatffi.nim"
-
-task tests, "run unit tests":
-  exec "nim c -r tests/testcircomcompat.nim"
diff --git a/circomcompat.nimble b/circomcompat.nimble
index 143b5b3..47f46ad 100644
--- a/circomcompat.nimble
+++ b/circomcompat.nimble
@@ -11,4 +11,11 @@ srcDir        = "src"
 
 requires "nim >= 1.2.18"
 
-include "build.nims"
\ No newline at end of file
+import std/os
+
+task genffi, "update the nim ffi bindings":
+  exec "cargo install --git https://github.com/arnetheduck/nbindgen#e80a85f1505d78eeae78ce33b6f406603be27d35 nbindgen"
+  exec "nbindgen -c ./cbindgen.toml vendor/circom-compat-ffi --output circomcompatffi.nim"
+
+task tests, "run unit tests":
+  exec "nim c -r tests/testcircomcompat.nim"