1 files changed, 1 insertions, 1 deletions
diff --git a/pmpd~.c b/pmpd~.c
index db5d821..fd95655 100644
--- a/pmpd~.c
+++ b/pmpd~.c
@@ -163,7 +163,7 @@ t_int *pmpd_tilde_perform(t_int *w)
 			// compute forces generated by NLlinks (spring / dashpot)
 			{
 				L=x->NLlink[i].mass1->posX - x->NLlink[i].mass2->posX - x->NLlink[i].L0;
-				if (L<x->NLlink[i].Lmax & L>x->NLlink[i].Lmin)
+				if ((L < x->NLlink[i].Lmax) && (L > x->NLlink[i].Lmin))
 				{
 					F  = x->NLlink[i].K1 * pow(fabs(L) ,x->NLlink[i].Pow) ;
 					if (L < 0) F *= -1;