diff --git a/android/arch.go b/android/arch.go
index 6acf9cf51..4b4691b3d 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -1694,6 +1694,7 @@ func getNdkAbisConfig() []archConfig {
 	return []archConfig{
 		{"arm64", "armv8-a-branchprot", "", []string{"arm64-v8a"}},
 		{"arm", "armv7-a-neon", "", []string{"armeabi-v7a"}},
+		{"riscv64", "", "", []string{"riscv64"}},
 		{"x86_64", "", "", []string{"x86_64"}},
 		{"x86", "", "", []string{"x86"}},
 	}
diff --git a/scripts/build-ndk-prebuilts.sh b/scripts/build-ndk-prebuilts.sh
index b57963b34..964a8662c 100755
--- a/scripts/build-ndk-prebuilts.sh
+++ b/scripts/build-ndk-prebuilts.sh
@@ -19,7 +19,10 @@ if [ -z "${OUT_DIR}" ]; then
     exit 1
 fi
 
-TARGET_PRODUCT=ndk build/soong/soong_ui.bash --make-mode --soong-only ${OUT_DIR}/soong/ndk.timestamp
+# TODO: remove this when all the riscv64 dependencies exist (currently blocked by
+# http://b/273792258).
+ALLOW_MISSING_DEPENDENCIES=true \
+    TARGET_PRODUCT=ndk build/soong/soong_ui.bash --make-mode --soong-only ${OUT_DIR}/soong/ndk.timestamp
 
 if [ -n "${DIST_DIR}" ]; then
     mkdir -p ${DIST_DIR} || true