--- a/cbits/symbols.aarch64-android.c
+++ b/cbits/symbols.aarch64-android.c
@@ -171,8 +171,11 @@
     SYM(htonl),
     SYM(ntohl),
     // sys/random.h
+    // These public Bionic APIs are declared only from API level 28.
+#if __ANDROID_API__ >= 28
     SYM(getentropy),
     SYM(getrandom),
+#endif
     // sys/auxv.h
     SYM(getauxval),
     // sys/mman.h