In the present paper the application of an infrared camera to heat-transfer measurements in a hypersonic wind tunnel is described. The technique is closely related to the one using temperature sensitive paints or melting coatings. The main advantages of the present method are: (1) it is easy to apply as the model surface need not be treated with paint etc.; (2) the same model can be used again, as soon as it has cooled down; (3) smooth model surface; (4) good accuracy of the temperature measurement. Results are given for heat-transfer measurements on a paraboloid at M=7 and compared with other measurements. Good agreement is found.