diff --git a/src/native/libs/System.Native/pal_io.c b/src/native/libs/System.Native/pal_io.c
index 4dd5c55dede84f..490f316e6b2077 100644
--- a/src/native/libs/System.Native/pal_io.c
+++ b/src/native/libs/System.Native/pal_io.c
@@ -1259,6 +1259,15 @@ int32_t SystemNative_CopyFile(intptr_t sourceFd, intptr_t destinationFd, int64_t
         copied = sourceLength == 0;
     }
 #endif
+
+#if HAVE_FALLOCATE // Linux
+    if (!copied && sourceLength > 81920) // BufferSize used by CopyFile_ReadWrite (would require more than 1 sys-call)
+    {
+        // try to pre-allocate disk space for large destination files
+        while ((ret = fallocate(outFd, FALLOC_FL_KEEP_SIZE, (off_t)0, (off_t)sourceLength)) == -1 && errno == EINTR);
+    }
+#endif
+
 #if HAVE_SENDFILE_4
     // Try copying the data using sendfile.
     if (trySendFile && !copied && sourceLength != 0)