diff --git a/tracy/tracy/inc/soleillib.h b/tracy/tracy/inc/soleillib.h
index 6fc47b66af5218c2e82002fdf5aa456d863a768f..846731a60c4d0d1af206343c6f5384326e080d96 100644
--- a/tracy/tracy/inc/soleillib.h
+++ b/tracy/tracy/inc/soleillib.h
@@ -35,7 +35,7 @@ void Multipole_thicksext(char const *fic_hcorr, char const *fic_vcorr, char cons
 void Multipole_thinsext(char const *fic_hcorr, char const *fic_vcorr, char const *fic_skew);
 void MomentumAcceptance(long deb, long fin, double ep_min, double ep_max, long nstepp,
                         double em_min, double em_max, long nstepm);
-void ReadCh(const char *AperFile);
+
 void Trac_Tab(double x, double px, double y, double py, double dp,
             long nmax, long pos, long *lastn, long *lastpos, FILE *outf1, double Tx[][NTURN]);
 void SetSkewQuad(void);
@@ -59,9 +59,8 @@ void TunesShiftWithAmplitude(long Nbx, long Nbz, long Nbtour, double xmax, doubl
                  double energy);
 
 /* Vacuum chamber */
-void ChamberOn(void);
-void DefineCh(void);
-void DefineChNoU20(void);
+void ReadCh(const char *AperFile);
+
 void Enveloppe(double x, double px, double y, double py,
                       double dp, double nturn);