diff --git a/cores/esp8266/FS.h b/cores/esp8266/FS.h
index 12792d7c33..7ee12d73fa 100644
--- a/cores/esp8266/FS.h
+++ b/cores/esp8266/FS.h
@@ -54,6 +54,11 @@ class File : public Stream
     // Print methods:
     size_t write(uint8_t) override;
     size_t write(const uint8_t *buf, size_t size) override;
+    size_t write(int8_t t) { return write((uint8_t)t); }
+    size_t write(int16_t t) { return write((uint8_t)(t & 0xff)); }
+    size_t write(int32_t t) { return write((uint8_t)(t & 0xff)); }
+    size_t write(uint16_t t) { return write((uint8_t)(t & 0xff)); }
+    size_t write(uint32_t t) { return write((uint8_t)(t & 0xff)); }
 
     // Stream methods:
     int available() override;
diff --git a/tests/host/fs/test_fs.cpp b/tests/host/fs/test_fs.cpp
index 5c39d3d582..322f057d9e 100644
--- a/tests/host/fs/test_fs.cpp
+++ b/tests/host/fs/test_fs.cpp
@@ -350,4 +350,12 @@ TEST_CASE("Multisplendored File::writes", "[fs]")
     f.write((const uint8_t*)&bigone, 4);
     f.close();
     REQUIRE(readFileSD("/file.txt") == "aAbbcctheendxyz@@@@");
+    File g = SD.open("/file.txt", FILE_WRITE);
+    g.write(0);
+    g.close();
+    g = SD.open("/file.txt", FILE_READ);
+    uint8_t u = 0x66;
+    g.read(&u, 1);
+    g.close();
+    REQUIRE(u == 0);
 }