Data obtained at the Observatorio del Teide (Tenerife) during the years 1978 to 1988 using a resonant scattering spectrophotometer, is analyzed to look for variations of the low degree p-mode frequencies along the solar cycle. The analysis based on the cross-correlation of power spectra suggests that the variation of its maximum correlation correlates well with the solar cycle. An overall variation, from minimum to maximum solar activity, of 0.5 + or - 0.1 micro Hz is found, when low l modes are considered. This effect depends on the l values of the modes being absent for l=0 and of 0.7 + or - 0.1 micro Hz for l=1. Therefore, other interpretations than a simple frequency shift are plausible, such as different amplitudes between modes in the same multiplet or an asymmetric change of the splitting along the solar cycle.