diff --git a/linker/Android.mk b/linker/Android.mk
index 8be53a1..0188a49 100644
--- a/linker/Android.mk
+++ b/linker/Android.mk
@@ -12,6 +12,7 @@
     linker_sdk_versions.cpp \
     linker_block_allocator.cpp \
     linker_libc_support.c \
+    linker_mapped_file_fragment.cpp \
     linker_memory.cpp \
     linker_phdr.cpp \
     linker_utils.cpp \