Detection of the 478 keV line in INTEGRAL/SPI data during revolution 1368, obtained with analysis using a fixed Gaussian line width. Inspection of the full spectrum from 20 keV to 505 keV shows that it is consistent with zero everywhere except for the bump at 478 keV. The top panel shows the extracted fluxes (grey) and re-binned (black). The fitted spectrum is shown as a blue (constant) and red (line) band with their 1 and 2 sigma uncertainties. The bottom panel shows the residuals of the fit for the top panel (the plot for the line with a free line width is very similar).