diff --git a/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml b/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
index 7945009d7dfac7dca8025c3e374926455cc9986b..fa72bf83b0581c439c0a2b1f2ef7bd29d7053c78 100644
--- a/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
+++ b/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
@@ -91,6 +91,15 @@ InitialConditions:
   generate_gas_in_ics: 1             # Generate gas particles from the DM-only ICs
   cleanup_smoothing_lengths: 1       # Since we generate gas, make use of the (expensive) cleaning-up procedure.
 
+# Parameters of the line-of-sight outputs
+LineOfSight:
+  basename:            eagle_los
+  num_along_x:         0
+  num_along_y:         0
+  num_along_z:         100
+  scale_factor_first:  0.1
+  delta_time:          1.1
+
 # Impose primoridal metallicity
 EAGLEChemistry:
   init_abundance_metal:     0.
@@ -104,6 +113,7 @@ EAGLEChemistry:
   init_abundance_Silicon:   0.0
   init_abundance_Iron:      0.0
 
+# EAGLE cooling parameters
 EAGLECooling:
   dir_name:                ./coolingtables/
   H_reion_z:               7.5                 # Planck 2018
diff --git a/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml b/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
index 0ca0f37bcfb8a5290790bc604ea9eb1bf11dbad2..5dc4a4dd6e33493f9dac2bfdf6d8b37bb3ef594f 100644
--- a/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
+++ b/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
@@ -91,6 +91,15 @@ InitialConditions:
   generate_gas_in_ics: 1             # Generate gas particles from the DM-only ICs
   cleanup_smoothing_lengths: 1       # Since we generate gas, make use of the (expensive) cleaning-up procedure.
 
+# Parameters of the line-of-sight outputs
+LineOfSight:
+  basename:            eagle_los
+  num_along_x:         0
+  num_along_y:         0
+  num_along_z:         100
+  scale_factor_first:  0.1
+  delta_time:          1.1
+
 # Impose primoridal metallicity
 EAGLEChemistry:
   init_abundance_metal:     0.
diff --git a/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml b/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
index b4aa82a79cf77c5d19c5f2f475ba5c968216758b..b824789bcc406115465a5c50815ed8d6234d680f 100644
--- a/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
+++ b/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
@@ -89,6 +89,15 @@ InitialConditions:
   generate_gas_in_ics: 1             # Generate gas particles from the DM-only ICs
   cleanup_smoothing_lengths: 1       # Since we generate gas, make use of the (expensive) cleaning-up procedure.
 
+# Parameters of the line-of-sight outputs
+LineOfSight:
+  basename:            eagle_los
+  num_along_x:         0
+  num_along_y:         0
+  num_along_z:         100
+  scale_factor_first:  0.1
+  delta_time:          1.1
+
 # Impose primoridal metallicity
 EAGLEChemistry:
   init_abundance_metal:     0.
diff --git a/examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml b/examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml
index 201c5cdde6e8250b56b8493d8103f91ae0678ae5..bd81d0e848496165f3212f63a82a8c0fd1781e11 100644
--- a/examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml
+++ b/examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml
@@ -88,6 +88,15 @@ InitialConditions:
   generate_gas_in_ics: 1             # Generate gas particles from the DM-only ICs
   cleanup_smoothing_lengths: 1       # Since we generate gas, make use of the (expensive) cleaning-up procedure.
 
+# Parameters of the line-of-sight outputs
+LineOfSight:
+  basename:            eagle_los
+  num_along_x:         0
+  num_along_y:         0
+  num_along_z:         100
+  scale_factor_first:  0.1
+  delta_time:          1.1
+
 # Impose primoridal metallicity
 EAGLEChemistry:
   init_abundance_metal:     0.
diff --git a/examples/QuickLymanAlpha/L050N0752/qla_50.yml b/examples/QuickLymanAlpha/L050N0752/qla_50.yml
index 32a5fbf66d96e68203b99d6cd920f98d6f75e090..9eeac77e732eeeb32c5440dd5586199c401fedf1 100644
--- a/examples/QuickLymanAlpha/L050N0752/qla_50.yml
+++ b/examples/QuickLymanAlpha/L050N0752/qla_50.yml
@@ -62,7 +62,7 @@ Scheduler:
 
 Restarts:
   onexit:       1
-  delta_hours:  2.0
+  delta_hours:  6.0
   
 # Parameters related to the initial conditions
 InitialConditions:
@@ -73,6 +73,15 @@ InitialConditions:
   generate_gas_in_ics: 1                    # Generate gas particles from the DM-only ICs
   cleanup_smoothing_lengths: 1              # Since we generate gas, make use of the (expensive) cleaning-up procedure.
 
+# Parameters of the line-of-sight outputs
+LineOfSight:
+  basename:            los
+  num_along_x:         0
+  num_along_y:         0
+  num_along_z:         100
+  scale_factor_first:  0.1
+  delta_time:          1.1
+
 # Quick Lyman-alpha cooling (EAGLE with fixed primoridal Z)
 QLACooling:
   dir_name:                ./coolingtables/
diff --git a/src/line_of_sight.c b/src/line_of_sight.c
index a4c4aa9a8c5b624ac7b9c3d824a828952ab4ad1c..0216d7429a50385fd6a62da14b53f7ad878d25e5 100644
--- a/src/line_of_sight.c
+++ b/src/line_of_sight.c
@@ -110,11 +110,11 @@ void los_init(const double dim[3], struct los_props *los_params,
 
   /* How many line of sights in each plane. */
   los_params->num_along_z =
-      parser_get_opt_param_int(params, "LineOfSight:num_along_z", 0);
+      parser_get_param_int(params, "LineOfSight:num_along_z");
   los_params->num_along_x =
-      parser_get_opt_param_int(params, "LineOfSight:num_along_x", 0);
+      parser_get_param_int(params, "LineOfSight:num_along_x");
   los_params->num_along_y =
-      parser_get_opt_param_int(params, "LineOfSight:num_along_y", 0);
+      parser_get_param_int(params, "LineOfSight:num_along_y");
 
   /* Min/max range across x,y and z (simulation axes) where random
    * LOS's are allowed. */