diff --git a/cross/ndk-build/ndk-build-shared-library.mk b/cross/ndk-build/ndk-build-shared-library.mk
index 0af68980cfc..d60802da1d0 100644
--- a/cross/ndk-build/ndk-build-shared-library.mk
+++ b/cross/ndk-build/ndk-build-shared-library.mk
@@ -77,7 +77,7 @@ $$(error Trying to build nasm file on non-Intel platform!)
 else
 
 $(call objname,$(LOCAL_MODULE),$(basename $(1))): $(LOCAL_PATH)/$(1)
-	$(NDK_BUILD_NASM) -felf -o $$@ -i $(LOCAL_PATH) -i $$(dir $$<) $(NDK_ASFLAGS_$(LOCAL_MODULE)) $$<
+	$(NDK_BUILD_NASM) -felf$(findstring 64,$(NDK_BUILD_ARCH)) -o $$@ -i $(LOCAL_PATH) -i $$(dir $$<) $(NDK_ASFLAGS_$(LOCAL_MODULE)) $$<
 
 endif
 endif
diff --git a/cross/ndk-build/ndk-build-static-library.mk b/cross/ndk-build/ndk-build-static-library.mk
index 88be518cd39..98afd864ed6 100644
--- a/cross/ndk-build/ndk-build-static-library.mk
+++ b/cross/ndk-build/ndk-build-static-library.mk
@@ -65,7 +65,7 @@ $$(error Trying to build nasm file on non-Intel platform!)
 else
 
 $(call objname,$(LOCAL_MODULE),$(basename $(1))): $(call maybe-absolute,$(1),$(2))
-	$(NDK_BUILD_NASM) -felf -o $$@ -i $(LOCAL_PATH) -i $$(dir $$<) $(NDK_ASFLAGS_$(LOCAL_MODULE)) $$<
+	$(NDK_BUILD_NASM) -felf$(findstring 64,$(NDK_BUILD_ARCH)) -o $$@ -i $(LOCAL_PATH) -i $$(dir $$<) $(NDK_ASFLAGS_$(LOCAL_MODULE)) $$<
 
 endif
 endif