diff --git a/tools/gn2bp/Android.bp.swp b/tools/gn2bp/Android.bp.swp
index 6ba7f93..9f34b06 100644
--- a/tools/gn2bp/Android.bp.swp
+++ b/tools/gn2bp/Android.bp.swp
@@ -3992,7 +3992,6 @@
         "-DGOOGLE_PROTOBUF_NO_RTTI",
         "-O2",
         "-Wno-ambiguous-reversed-operator",
-        "-Wno-deprecated-non-prototype",
         "-Wno-error=return-type",
         "-Wno-macro-redefined",
         "-Wno-missing-field-initializers",
diff --git a/tools/gn2bp/gen_android_bp b/tools/gn2bp/gen_android_bp
index 210e131..9d2d858 100755
--- a/tools/gn2bp/gen_android_bp
+++ b/tools/gn2bp/gen_android_bp
@@ -1607,7 +1607,6 @@
       '-Wno-sign-promo',
       '-Wno-unused-parameter',
       '-Wno-null-pointer-subtraction', # Needed to libevent
-      '-Wno-deprecated-non-prototype', # needed for zlib
       '-fvisibility=hidden',
       '-Wno-ambiguous-reversed-operator', # needed for icui18n
       '-Wno-unreachable-code-loop-increment', # needed for icui18n