diff --git a/Android.mk b/Android.mk
index 5b2eaaa..9c4c500 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,6 +23,7 @@
 	inffast.c
 
 LOCAL_MODULE := libz
+LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS += -O3 -DUSE_MMAP
 LOCAL_SRC_FILES := $(zlib_files)
 include $(BUILD_SHARED_LIBRARY)
@@ -31,6 +32,7 @@
 
 LOCAL_ARM_MODE := arm
 LOCAL_MODULE := libz
+LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS += -O3 -DUSE_MMAP
 LOCAL_SRC_FILES := $(zlib_files)
 include $(BUILD_STATIC_LIBRARY)
@@ -39,6 +41,7 @@
 
 LOCAL_ARM_MODE := arm
 LOCAL_MODULE := libz
+LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS += -O3 -DUSE_MMAP
 LOCAL_SRC_FILES := $(zlib_files)
 include $(BUILD_HOST_STATIC_LIBRARY)