diff --git a/loadrunable.cpp b/loadrunable.cpp
index b6192de..5372a10 100644
--- a/loadrunable.cpp
+++ b/loadrunable.cpp
@@ -274,6 +274,15 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
     if(file)
         loadFITSHeader(file, info);
 
+    if(image)
+    {
+        for(auto fits : info.fitsHeader)
+        {
+            if(fits.key == "ROWORDER" && fits.value == "BOTTOM-UP")
+                image->flip();
+        }
+    }
+
     fits_close_file(file, &status);
     if(status)
     {
diff --git a/rawimage.cpp b/rawimage.cpp
index 3234319..744e0a2 100644
--- a/rawimage.cpp
+++ b/rawimage.cpp
@@ -658,6 +658,15 @@ std::pair<float, float> RawImage::unitScale() const
         return {1.0f, 0.0f};
 }
 
+void RawImage::flip()
+{
+    std::unique_ptr<PixelType[]> tmp = std::move(m_pixels);
+    allocate(m_width, m_height, m_channels, m_type);
+    uint32_t rowSize = m_width * m_ch * typeSize(m_type);
+    for(uint32_t i=0; i<m_height; i++)
+        std::memcpy(m_pixels.get() + rowSize * (m_height - i - 1), tmp.get() + rowSize * i, rowSize);
+}
+
 std::shared_ptr<RawImage> RawImage::fromPlanar(const RawImage &img)
 {
     return RawImage::fromPlanar(img.data(), img.width(), img.height(), img.channels(), img.type());
diff --git a/rawimage.h b/rawimage.h
index ef5b4fd..a133011 100644
--- a/rawimage.h
+++ b/rawimage.h
@@ -99,6 +99,7 @@ public:
     bool pixel(int x, int y, double &r, double &g, double &b) const;
     void resize(uint32_t w, uint32_t h);
     std::pair<float, float> unitScale() const;
+    void flip();
 
     static std::shared_ptr<RawImage> fromPlanar(const RawImage &img);
     static std::shared_ptr<RawImage> fromPlanar(const void *pixels, uint32_t w, uint32_t h, uint32_t ch, DataType type);