diff --git a/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1mm/ATHENA_1mm.instr b/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1mm/ATHENA_1mm.instr
index 6336e7fed8..aa8798aaed 100644
--- a/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1mm/ATHENA_1mm.instr
+++ b/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1mm/ATHENA_1mm.instr
@@ -155,7 +155,7 @@ INITIALIZE
 
     fp=fopen(fullpath_geomfile,"rb");
     if (fp==NULL){
-        fprintf(stderr,"Error: Cannot open file \'%s\'. Aborting.",fullpath_geomfile);
+        fprintf(stderr,"Error: Cannot open file \'%s\'. Aborting.\n",fullpath_geomfile);
         exit(-1);
     }
     fgets(line,1023,fp);
diff --git a/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1pore/ATHENA_1pore.instr b/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1pore/ATHENA_1pore.instr
index 5accab3837..e4208699e5 100644
--- a/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1pore/ATHENA_1pore.instr
+++ b/mcxtrace-comps/examples/AstroX_ESA/ATHENA_1pore/ATHENA_1pore.instr
@@ -156,7 +156,7 @@ INITIALIZE
 
     fp=fopen(fullpath_geomfile,"rb");
     if (fp==NULL){
-        fprintf(stderr,"Error: Cannot open file \'%s\'. Aborting.",fullpath_geomfile);
+        fprintf(stderr,"Error: Cannot open file \'%s\'. Aborting.\n",fullpath_geomfile);
         exit(-1);
     }
     fgets(line,1023,fp);
diff --git a/mcxtrace-comps/examples/DTU/Pump_probe_solvent/Pump_probe_solvent.instr b/mcxtrace-comps/examples/DTU/Pump_probe_solvent/Pump_probe_solvent.instr
index e5d5dacc6d..6b0544c5c7 100644
--- a/mcxtrace-comps/examples/DTU/Pump_probe_solvent/Pump_probe_solvent.instr
+++ b/mcxtrace-comps/examples/DTU/Pump_probe_solvent/Pump_probe_solvent.instr
@@ -76,7 +76,7 @@ INITIALIZE
               "(NOSOLUTE!=0) and set a solute volume fraction of 1 (FSOLV==0).\n");
   }
   if(NOSOLUTE && NOSOLVENT){
-      fprintf(stderr,"Warning (Pump_probe_solvent): You have disabled solute and solvent scattering.\nAborting to avoid wasting your time.");
+      fprintf(stderr,"Warning (Pump_probe_solvent): You have disabled solute and solvent scattering.\nAborting to avoid wasting your time.\n");
       exit(0);
   }
 
diff --git a/mcxtrace-comps/examples/MAXIV/MAXIV_Bloch/MAXIV_Bloch.instr b/mcxtrace-comps/examples/MAXIV/MAXIV_Bloch/MAXIV_Bloch.instr
index 4b4c3dc040..afc4c8f2ee 100644
--- a/mcxtrace-comps/examples/MAXIV/MAXIV_Bloch/MAXIV_Bloch.instr
+++ b/mcxtrace-comps/examples/MAXIV/MAXIV_Bloch/MAXIV_Bloch.instr
@@ -245,7 +245,7 @@ if (cff && !grating_mode){
 /*}*/
 
 if(verbose){
-  fprintf(stdout,"INFO(%s):Monochromator specs: \n Angle of pre-mirror=%f deg. \n Angle of grating=%f deg.",instrument_name,mirror2_angle,angle_grating);
+  fprintf(stdout,"INFO(%s):Monochromator specs: \n Angle of pre-mirror=%f deg. \n Angle of grating=%f deg.\n",instrument_name,mirror2_angle,angle_grating);
 }
 MCAngleVariation=angle_grating*0.99;
 
@@ -276,17 +276,17 @@ Error messages:
 *******************************************************/
 if (angle_grating>30 || angle_grating<0)
 {
-  fprintf(stderr,"ERROR: cPGM grating angle is out of bounds(%f DEG). Simulation ended",angle_grating);
+  fprintf(stderr,"ERROR: cPGM grating angle is out of bounds(%f DEG). Simulation ended.\n",angle_grating);
   exit(-1);
 }
 if (mirror2_angle>21 || mirror2_angle<0)
 {
-  fprintf(stderr,"ERROR: M2 angle is out of bounds(%f DEG). Simulation ended",mirror2_angle);
+  fprintf(stderr,"ERROR: M2 angle is out of bounds(%f DEG). Simulation ended.\n",mirror2_angle);
   exit(-1);
 }
 if (theta_PG_NIM>30 || theta_PG_NIM<0)
 {
-  fprintf(stderr,"ERROR: NIM grating angle is out of bounds(%f DEG). Simulation ended",theta_PG_NIM);
+  fprintf(stderr,"ERROR: NIM grating angle is out of bounds(%f DEG). Simulation ended.\n",theta_PG_NIM);
   exit(-1);
 }
 %}