diff --git a/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml b/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
index 3e55ec9274a23d39818c19a1e5e3c292806c4682..cf4d711c5cb3bff4e355587343a33282f03a84b9 100644
--- a/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
+++ b/examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
@@ -164,7 +164,7 @@ EAGLEFeedback:
   SNII_yield_factor_Nitrogen:       1.0             # (Optional) Correction factor to apply to the Nitrogen yield from the SNII channel.
   SNII_yield_factor_Oxygen:         1.0             # (Optional) Correction factor to apply to the Oxygen yield from the SNII channel.
   SNII_yield_factor_Neon:           1.0             # (Optional) Correction factor to apply to the Neon yield from the SNII channel.
-  SNII_yield_factor_Magnesium:      2.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
+  SNII_yield_factor_Magnesium:      4.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
   SNII_yield_factor_Silicon:        1.0             # (Optional) Correction factor to apply to the Silicon yield from the SNII channel.
   SNII_yield_factor_Iron:           0.5             # (Optional) Correction factor to apply to the Iron yield from the SNII channel.
 
diff --git a/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml b/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
index 9d3f466fd5031ef6cdb8d74836ab0fe274f58c93..ddd0470c2af2d547b5a9e642e0587cb9d8306ae9 100644
--- a/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
+++ b/examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
@@ -165,7 +165,7 @@ EAGLEFeedback:
   SNII_yield_factor_Nitrogen:       1.0             # (Optional) Correction factor to apply to the Nitrogen yield from the SNII channel.
   SNII_yield_factor_Oxygen:         1.0             # (Optional) Correction factor to apply to the Oxygen yield from the SNII channel.
   SNII_yield_factor_Neon:           1.0             # (Optional) Correction factor to apply to the Neon yield from the SNII channel.
-  SNII_yield_factor_Magnesium:      2.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
+  SNII_yield_factor_Magnesium:      4.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
   SNII_yield_factor_Silicon:        1.0             # (Optional) Correction factor to apply to the Silicon yield from the SNII channel.
   SNII_yield_factor_Iron:           0.5             # (Optional) Correction factor to apply to the Iron yield from the SNII channel.
 
diff --git a/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml b/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
index e7af43e7bb9fb3f189f3f528afdb04da84633648..c12e8b33b4dac82cd03eb7fc7a1a737271f0b78a 100644
--- a/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
+++ b/examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
@@ -165,7 +165,7 @@ EAGLEFeedback:
   SNII_yield_factor_Nitrogen:       1.0             # (Optional) Correction factor to apply to the Nitrogen yield from the SNII channel.
   SNII_yield_factor_Oxygen:         1.0             # (Optional) Correction factor to apply to the Oxygen yield from the SNII channel.
   SNII_yield_factor_Neon:           1.0             # (Optional) Correction factor to apply to the Neon yield from the SNII channel.
-  SNII_yield_factor_Magnesium:      2.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
+  SNII_yield_factor_Magnesium:      4.0             # (Optional) Correction factor to apply to the Magnesium yield from the SNII channel.
   SNII_yield_factor_Silicon:        1.0             # (Optional) Correction factor to apply to the Silicon yield from the SNII channel.
   SNII_yield_factor_Iron:           0.5             # (Optional) Correction factor to apply to the Iron yield from the SNII channel.
 
diff --git a/examples/EAGLE_ICs/README b/examples/EAGLE_ICs/README
index ac186af26f1ed6585c79d96b6a7d6ab7dc3339bf..7a9cdae549f5d74145009739add71e8555d0df41 100644
--- a/examples/EAGLE_ICs/README
+++ b/examples/EAGLE_ICs/README
@@ -3,6 +3,13 @@ the EAGLE suite of simulations. The cosmology, resolution
 and phases are the same as used in the original suite. The only
 difference is the file format, adapted for SWIFT.
 
+Compared to the original EAGLE runs, the following changes have been
+made:
+
+ - The redshift of reionization has been lowered to 7.5 (from 11.5)
+ - The Magnesium yields from SNII stars have been boosted by a
+   factor of 2.
+
 The scripts in this directory download the tables required to
 run the EAGLE model. Plotting scripts are also provided
 for basic quantities.