diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 42ed0158e9..5f80d351ac 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -37,3 +37,6 @@ EXTRA_DIST = nix-collect-garbage.in \
   nix-reduce-build.in \
   nix-http-export.cgi.in \
   nix-generate-patches.in
+
+clean:
+	rm -f $(bin_SCRIPTS) $(noinst_SCRIPTS)
diff --git a/scripts/copy-from-other-stores.pl.in b/scripts/copy-from-other-stores.pl.in
old mode 100644
new mode 100755
diff --git a/scripts/download-using-manifests.pl.in b/scripts/download-using-manifests.pl.in
old mode 100644
new mode 100755
diff --git a/scripts/find-runtime-roots.pl.in b/scripts/find-runtime-roots.pl.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-build.in b/scripts/nix-build.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-channel.in b/scripts/nix-channel.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-collect-garbage.in b/scripts/nix-collect-garbage.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-copy-closure.in b/scripts/nix-copy-closure.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-generate-patches.in b/scripts/nix-generate-patches.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-install-package.in b/scripts/nix-install-package.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-prefetch-url.in b/scripts/nix-prefetch-url.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-pull.in b/scripts/nix-pull.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-push.in b/scripts/nix-push.in
old mode 100644
new mode 100755
diff --git a/scripts/nix-reduce-build.in b/scripts/nix-reduce-build.in
old mode 100644
new mode 100755