diff --git a/Sources/CNIOLinux/include/CNIOLinux.h b/Sources/CNIOLinux/include/CNIOLinux.h
index 311b3b85440..04630d8cf92 100644
--- a/Sources/CNIOLinux/include/CNIOLinux.h
+++ b/Sources/CNIOLinux/include/CNIOLinux.h
@@ -149,5 +149,8 @@ extern const unsigned long CNIOLinux_UTIME_NOW;
 
 extern const long CNIOLinux_UDP_MAX_SEGMENTS;
 
+// A workaround for incorrect nullability annotations in the Android SDK.
+FTS *CNIOLinux_fts_open(char * const *path_argv, int options, int (*compar)(const FTSENT **, const FTSENT **));
+
 #endif
 #endif
diff --git a/Sources/CNIOLinux/shim.c b/Sources/CNIOLinux/shim.c
index 955c440063c..afbad100c51 100644
--- a/Sources/CNIOLinux/shim.c
+++ b/Sources/CNIOLinux/shim.c
@@ -220,4 +220,8 @@ const unsigned long CNIOLinux_UTIME_NOW = UTIME_NOW;
 const long CNIOLinux_UDP_MAX_SEGMENTS = UDP_MAX_SEGMENTS;
 #endif
 const long CNIOLinux_UDP_MAX_SEGMENTS = -1;
+
+FTS *CNIOLinux_fts_open(char * const *path_argv, int options, int (*compar)(const FTSENT **, const FTSENT **)) {
+    fts_open(path_argv, options, compar);
+}
 #endif
diff --git a/Sources/NIOFileSystem/Internal/System Calls/Syscalls.swift b/Sources/NIOFileSystem/Internal/System Calls/Syscalls.swift
index c98bc1ed231..a8718760258 100644
--- a/Sources/NIOFileSystem/Internal/System Calls/Syscalls.swift	
+++ b/Sources/NIOFileSystem/Internal/System Calls/Syscalls.swift	
@@ -456,7 +456,14 @@ internal func libc_fts_open(
     _ path: [UnsafeMutablePointer<CInterop.PlatformChar>?],
     _ options: CInt
 ) -> UnsafeMutablePointer<CInterop.FTS> {
+    #if os(Android)
+    // This branch is a workaround for incorrect nullability annotations in the Android SDK.
+    // They were added in https://android.googlesource.com/platform/bionic/+/dec8efd72a6ad8b807a15a614ae1519487cfa456,
+    // and lasted for more than a year: https://android.googlesource.com/platform/bionic/+/da81ec4d1cbd0279014feb60535bf38defcd9346.
+    CNIOLinux_fts_open(path, options, nil)!
+    #else
     fts_open(path, options, nil)!
+    #endif
 }
 
 /// fts(3)