diff --git a/ck2_mods/build_ck2tweaks b/ck2_mods/build_ck2tweaks
index ada4cc3a..8fb027b8 100755
--- a/ck2_mods/build_ck2tweaks
+++ b/ck2_mods/build_ck2tweaks
@@ -573,6 +573,26 @@ class CK2TweaksModBuilder < ParadoxModBuilder::CK2
     end
   end
 
+  # Because it's a portage, only use with allow_everyone_river_access!
+  def suez_canal!
+    # 1382 - Gulf of Suez
+    #  939 - Nile Delta
+    #  789 - Pelusia
+    patch_file!("map/adjacencies.csv", reencode: "iso-8859-1") do |content|
+      [
+        content,
+        "939;1382;portage;789;-1;-1;-1;-1;Suez Canal",
+      ].join("\r\n")
+    end
+    # Merge both oceans
+    patch_mod_file!("map/default.map") do |map|
+      map.delete_if{|k,v|
+        k == "ocean_region" and v == PropertyList["sea_zones", [5, 6, 7, 8]]
+      }
+      map["ocean_region"]["sea_zones"] = [1,2,3,4,5,6,7,8]
+    end
+  end
+
   def build_mod_files!
     ### General fixes:
     no_dynastic_country_names!
@@ -593,6 +613,7 @@ class CK2TweaksModBuilder < ParadoxModBuilder::CK2
     fast_de_jure_drift!
     allow_everyone_river_access!
     disable_fucking_hints!
+    suez_canal!
 
     ### Specific things for specific campaign, kept for reference:
     # create_hunie_trait!