diff --git a/Tests/AK/TestFormat.cpp b/Tests/AK/TestFormat.cpp
index 89324d37aaf..61923da842e 100644
--- a/Tests/AK/TestFormat.cpp
+++ b/Tests/AK/TestFormat.cpp
@@ -10,6 +10,7 @@
 #include <AK/StringBuilder.h>
 #include <AK/Vector.h>
 #include <math.h>
+#include <unistd.h>
 
 TEST_CASE(is_integral_works_properly)
 {
@@ -232,6 +233,8 @@ TEST_CASE(file_descriptor)
     EXPECT_EQ("Hello, World!\nfoobar\n"sv, StringView { buffer.span().trim(nread) });
 
     fclose(file);
+
+    unlink(filename);
 }
 
 TEST_CASE(floating_point_numbers)
diff --git a/Tests/LibCore/TestLibCoreIODevice.cpp b/Tests/LibCore/TestLibCoreIODevice.cpp
index 0af3f820e94..8bb74f26fd7 100644
--- a/Tests/LibCore/TestLibCoreIODevice.cpp
+++ b/Tests/LibCore/TestLibCoreIODevice.cpp
@@ -35,6 +35,7 @@ TEST_CASE(file_readline)
     file->close();
     outputfile->close();
     VERIFY(files_have_same_contents(path, output_path));
+    unlink(output_path);
 }
 
 TEST_CASE(file_get_read_position)
@@ -88,4 +89,5 @@ TEST_CASE(file_lines_range)
     file->close();
     outputfile->close();
     VERIFY(files_have_same_contents(path, output_path));
+    unlink(output_path);
 }