diff --git a/Android.mk b/Android.mk
index 021c026..ad4acea 100644
--- a/Android.mk
+++ b/Android.mk
@@ -184,6 +184,8 @@
 
 LOCAL_MODULE_TAGS := debug
 
+LOCAL_MODULE_TARGET_ARCH := arm arm64 x86
+
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 include $(BUILD_EXECUTABLE)
diff --git a/output.c b/output.c
index c4674d1..0cec653 100644
--- a/output.c
+++ b/output.c
@@ -725,7 +725,7 @@
 
 		/* Verify that we can safely cast arch_addr_t* to
 		 * unw_word_t*.  */
-		(void)sizeof(char[1 - (2*(sizeof(unw_word_t))
+		(void)sizeof(char[1 - 2*(sizeof(unw_word_t)
 					!= sizeof(arch_addr_t))]);
 		unw_init_remote(&cursor, proc->unwind_as, proc->unwind_priv);
 		while (unwind_depth) {