diff --git a/libraries/SDFS/src/SDFS.h b/libraries/SDFS/src/SDFS.h
index 7f9886b05..f7eaaa7fb 100644
--- a/libraries/SDFS/src/SDFS.h
+++ b/libraries/SDFS/src/SDFS.h
@@ -284,7 +284,7 @@ class SDFSFileImpl : public FileImpl {
     }
 
     int availableForWrite() override {
-        return _opened ? _fd->availableSpaceForWrite() : 0;
+        return _opened ? _fd->availableForWrite() : 0;
     }
 
     size_t write(const uint8_t *buf, size_t size) override {