diff --git a/fiat-zig/build.zig b/fiat-zig/build.zig
index d3a81bda4c..5fb16e262e 100644
--- a/fiat-zig/build.zig
+++ b/fiat-zig/build.zig
@@ -4,7 +4,7 @@ pub fn build(b: *std.Build) void {
     var main_tests = b.addTest(.{
         .root_source_file = .{ .path = "src/main.zig" },
     });
-
+    const run_main_tests = b.addRunArtifact(main_tests);
     const test_step = b.step("test", "Run library tests");
-    test_step.dependOn(&main_tests.step);
+    test_step.dependOn(&run_main_tests.step);
 }
diff --git a/fiat-zig/src/main.zig b/fiat-zig/src/main.zig
index d9556cefeb..9ba8d5799d 100644
--- a/fiat-zig/src/main.zig
+++ b/fiat-zig/src/main.zig
@@ -35,7 +35,6 @@ fn testVector(comptime fiat: type, expected_s: []const u8) !void {
     // Check that the result matches the expected one.
     var expected: [as.len]u8 = undefined;
     _ = try fmt.hexToBytes(&expected, expected_s);
-    std.debug.print("> {s}\n", .{fmt.fmtSliceHexLower(&as)});
     try std.testing.expectEqualSlices(u8, &expected, &as);
 }
 
diff --git a/inversion/zig/build.zig b/inversion/zig/build.zig
index 69f70fc4de..da13966807 100644
--- a/inversion/zig/build.zig
+++ b/inversion/zig/build.zig
@@ -4,7 +4,7 @@ pub fn build(b: *std.Build) void {
     var main_tests = b.addTest(.{
         .root_source_file = .{ .path = "inversion.zig" },
     });
-
+    const run_main_tests = b.addRunArtifact(main_tests);
     const test_step = b.step("test", "Run tests");
-    test_step.dependOn(&main_tests.step);
+    test_step.dependOn(&run_main_tests.step);
 }