diff --git a/src/ecopcr.c b/src/ecopcr.c
index d463043..671d4d5 100644
--- a/src/ecopcr.c
+++ b/src/ecopcr.c
@@ -345,7 +345,7 @@ int main(int argc, char **argv)
 	int32_t		  g=0;	
 	int32_t		  circular=0;
 	
-	char          compute_tm=0;
+	char          compute_tm=1;
 	int32_t		  saltmethod=SALT_METHOD_SANTALUCIA;
 	double		  salt=0.05;
 	CNNParams     tparm;
@@ -417,7 +417,7 @@ int main(int argc, char **argv)
           
 								/* --------------------------- */
 		case 't':               /* compute tm of amplification */
-		compute_tm = 1;		    /* --------------------------- */
+		compute_tm = 0;		    /* --------------------------- */
 		break;
 					/* --------------------------------- */
 		case 'm':               /* set salt method                   */