diff --git a/git-check-assertions b/bin/git-check-assertions
similarity index 100%
rename from git-check-assertions
rename to bin/git-check-assertions
diff --git a/default.nix b/default.nix
index 4dde1cf..8653ca0 100644
--- a/default.nix
+++ b/default.nix
@@ -20,7 +20,7 @@ resholve.mkDerivation {
   src = fs.toSource {
     root = ./.;
     fileset = fs.unions [
-      ./git-check-assertions
+      ./bin/git-check-assertions
       ./test.bats
     ];
   };
@@ -37,7 +37,7 @@ resholve.mkDerivation {
 
   checkPhase = ''
     runHook preCheck
-    shellcheck git-check-assertions test.bats
+    shellcheck bin/git-check-assertions test.bats
     git init
     git config user.email test
     git config user.name test
@@ -52,7 +52,7 @@ resholve.mkDerivation {
   installPhase = ''
     runHook preInstall
     mkdir -p $out/bin
-    cp $src/git-check-assertions $out/bin/git-check-assertions
+    cp $src/bin/git-check-assertions $out/bin/git-check-assertions
     runHook postInstall
   '';
 
diff --git a/test.bats b/test.bats
index 48965fd..96bf6d5 100755
--- a/test.bats
+++ b/test.bats
@@ -2,7 +2,7 @@
 
 setup() {
   DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )"
-  PATH="$DIR:$PATH"
+  PATH="$DIR/bin:$PATH"
 }
 
 @test "can run" {