diff --git a/source/glest_game/types/skill_type.cpp b/source/glest_game/types/skill_type.cpp
index 73e10fe8c..a3843e790 100644
--- a/source/glest_game/types/skill_type.cpp
+++ b/source/glest_game/types/skill_type.cpp
@@ -1072,6 +1072,10 @@ namespace Glest {
 
 			//misc
 			std::vector < string > attackStrengthXMLTags;
+			/*
+			 * Best practice would be to remove the incorrect spelling
+			 * of "strength", but that would break a lot of 3rd party mods
+			 */
 			attackStrengthXMLTags.push_back("attack-strenght");
 			attackStrengthXMLTags.push_back("attack-strength");
 			attackStrength =
diff --git a/source/glest_game/types/upgrade_type.cpp b/source/glest_game/types/upgrade_type.cpp
index 8f1e4d07f..2e2c2a566 100644
--- a/source/glest_game/types/upgrade_type.cpp
+++ b/source/glest_game/types/upgrade_type.cpp
@@ -162,6 +162,10 @@ namespace Glest {
 			attackStrengthIsMultiplier = false;
 
 			std::vector < string > attackStrengthXMLTags;
+			/*
+			 * Best practice would be to remove the incorrect spelling
+			 * of "strength", but that would break a lot of 3rd party mods
+			 */
 			attackStrengthXMLTags.push_back("attack-strenght");
 			attackStrengthXMLTags.push_back("attack-strength");
 			if (upgradeNode->hasChildWithAliases(attackStrengthXMLTags) == true) {
diff --git a/source/shared_lib/include/map/map_preview.h b/source/shared_lib/include/map/map_preview.h
index d055da6bd..dcac134b4 100644
--- a/source/shared_lib/include/map/map_preview.h
+++ b/source/shared_lib/include/map/map_preview.h
@@ -244,7 +244,7 @@ namespace Shared {
 
 			void resetHeights(int height);
 			void realRandomize(int minimumHeight, int maximumHeight, int chanceDivider, int smoothRecursions);
-			void applyNewHeight(float newHeight, int x, int y, int strenght);
+			void applyNewHeight(float newHeight, int x, int y, int strength);
 
 			bool hasFileLoaded() const {
 				return fileLoaded;
diff --git a/source/shared_lib/sources/map/map_preview.cpp b/source/shared_lib/sources/map/map_preview.cpp
index 9d9999ab1..dc4d8f8af 100644
--- a/source/shared_lib/sources/map/map_preview.cpp
+++ b/source/shared_lib/sources/map/map_preview.cpp
@@ -1022,8 +1022,8 @@ namespace Shared {
 			}
 		}
 
-		void MapPreview::applyNewHeight(float newHeight, int x, int y, int strenght) {
-			cells[x][y].height = static_cast<float>(((cells[x][y].height * strenght) + newHeight) / (strenght + 1));
+		void MapPreview::applyNewHeight(float newHeight, int x, int y, int strength) {
+			cells[x][y].height = static_cast<float>(((cells[x][y].height * strength) + newHeight) / (strength + 1));
 			hasChanged = true;
 		}