diff --git a/src/psd.imageio/psdinput.cpp b/src/psd.imageio/psdinput.cpp
index 3fca5c857e..8aa1e660c0 100644
--- a/src/psd.imageio/psdinput.cpp
+++ b/src/psd.imageio/psdinput.cpp
@@ -628,6 +628,7 @@ PSDInput::load_header ()
 bool
 PSDInput::read_header ()
 {
+    m_file.seekg(0, std::ios::beg);
     m_file.read (m_header.signature, 4);
     read_bige<uint16_t> (m_header.version);
     m_file.seekg(6, std::ios::cur);