diff --git a/src/SecExp/securityReport.tw b/src/SecExp/securityReport.tw
index aad8825bfde6c675012cb7a798f40fe0d2e017d8..230be15cbd9c7b86607eb0f56f58a433f4f72102 100644
--- a/src/SecExp/securityReport.tw
+++ b/src/SecExp/securityReport.tw
@@ -100,7 +100,7 @@
 <</if>>
 
 <<if $transportHub == 1>>
-	<<if $terrain != "oceanic" || $terrain != "marine">>
+	<<if $terrain != "oceanic" && $terrain != "marine">>
 		<<set _secGrowth += ($airport + $railway - $hubSecurity * 3) / 2>>
 	<<else>>
 		<<set _secGrowth += ($airport + $docks - $hubSecurity * 3) / 2>>
diff --git a/src/SecExp/tradeReport.tw b/src/SecExp/tradeReport.tw
index d08c807307a1297fc93fa12e4af8b9ce10a5d2d5..16c308cc8821b594638822f3e3cb04f52d9f01a4 100644
--- a/src/SecExp/tradeReport.tw
+++ b/src/SecExp/tradeReport.tw
@@ -76,7 +76,7 @@
 		The arcology's airport is an incredible boon to the commercial development of the arcology.<<set _tradeChange += 3>>
 	<</if>>
 
-	<<if $terrain != "oceanic" || $terrain != "marine">>
+	<<if $terrain != "oceanic" && $terrain != "marine">>
 		<<if $railway == 1>>
 			The railway network's age and limited extension limit commercial activity.
 		<<elseif $railway == 2>>
diff --git a/src/SecExp/transportHub.tw b/src/SecExp/transportHub.tw
index f83f9aeb0427f147179c0416bfe72e175877b2c2..d813ed19796aa6b69c257826dd90343da6b003cf 100644
--- a/src/SecExp/transportHub.tw
+++ b/src/SecExp/transportHub.tw
@@ -4,7 +4,7 @@
 
 <strong>The Transport Hub</strong>
 <hr>
-You quickly reach the transport hub, where a constant stream of vehicles, people and goods greets you. Part of the structure is dedicated to air travel and the other is mainly occupied by <<if $terrain != "oceanic" || $terrain != "marine">>the rail station.<<else>> the docks.<</if>>
+You quickly reach the transport hub, where a constant stream of vehicles, people and goods greets you. Part of the structure is dedicated to air travel and the other is mainly occupied by <<if $terrain != "oceanic" && $terrain != "marine">>the rail station.<<else>> the docks.<</if>>
 
 <<if $limitImmigration == 1 || $AntiImmigrationRep == 1>>
 	Due to your strict policies concerning immigration, very few new citizens arrive in the transport hub.
@@ -24,7 +24,7 @@ You quickly reach the transport hub, where a constant stream of vehicles, people
 	The arcology's airport is huge and very well equipped. It can handle an impressive amount of traffic.
 <</if>>
 
-<<if $terrain != "oceanic" || $terrain != "marine">>
+<<if $terrain != "oceanic" && $terrain != "marine">>
 	<<if $railway == 1>>
 		The railway network is old and limited. It can handle some traffic, but not sustain commercial activity.
 	<<elseif $railway == 2>>
@@ -107,7 +107,7 @@ You quickly reach the transport hub, where a constant stream of vehicles, people
 <</if>>
 <br>
 /* trainyard/dockyard */
-<<if $terrain != "oceanic" || $terrain != "marine">>
+<<if $terrain != "oceanic" && $terrain != "marine">>
 	<<if $railway == 1>>
 		<br>
 		<<link "Modernize the railway">>