diff --git a/foundry.toml b/foundry.toml
index 25b918f..b7460a0 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -1,5 +1,5 @@
 [profile.default]
-src = "src"
+src = "Challenge"
 out = "out"
 libs = ["lib"]
 
diff --git a/remappings.txt b/remappings.txt
new file mode 100644
index 0000000..6fdbafd
--- /dev/null
+++ b/remappings.txt
@@ -0,0 +1 @@
+@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/