diff --git a/lib/Android.bp b/lib/Android.bp
index 6f8aa72..6426af1 100644
--- a/lib/Android.bp
+++ b/lib/Android.bp
@@ -13,5 +13,6 @@
         "lz4frame.c",
         "xxhash.c",
     ],
+    cflags: ["-Wall", "-Werror"],
     export_include_dirs: ["."],
 }
diff --git a/programs/Android.bp b/programs/Android.bp
index 9d74c1e..9a6657b 100644
--- a/programs/Android.bp
+++ b/programs/Android.bp
@@ -8,13 +8,18 @@
         "lz4io.c",
         "lz4cli.c",
     ],
+    cflags: ["-Wall", "-Werror"],
     static_libs: ["liblz4"],
     stl: "libc++_static",
 }
 
 cc_binary_host {
     name: "lz4c",
-    cflags: ["-DENABLE_LZ4C_LEGACY_OPTIONS"],
+    cflags: [
+        "-DENABLE_LZ4C_LEGACY_OPTIONS",
+        "-Wall",
+        "-Werror",
+    ],
     srcs: [
         "datagen.c",
         "bench.c",