Stability of a 1 M_⊕ planet in the inner (left) and the outer regions (right) of the HD 108874 system as a function of the initial eccentricity and semi-major axis of the putative bodies. Colour scale ranges from black, representing stable regions, to yellow, which indicates higher degree of instability for planets with given separation and eccentricity. The empty (white) spaces indicate systems unstable over short timescales.