diff --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp b/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
index be577c3364049..bed19d15a8ec7 100644
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
@@ -78,6 +78,8 @@ TEST(SanitizerCommon, IsAccessibleMemoryRange) {
   EXPECT_TRUE(IsAccessibleMemoryRange(mem + 2 * page_size, page_size));
   EXPECT_FALSE(IsAccessibleMemoryRange(mem, 3 * page_size));
   EXPECT_FALSE(IsAccessibleMemoryRange(0x0, 2));
+
+  munmap((void *)mem, 3 * page_size);
 }
 
 }  // namespace __sanitizer