diff --git a/src/ai/ai.hpp b/src/ai/ai.hpp
index d3381fb..065367d 100644
--- a/src/ai/ai.hpp
+++ b/src/ai/ai.hpp
@@ -26,7 +26,7 @@ typedef std::map<const char *, class ScriptInfo *, StringCompare> ScriptInfoList
 class AI {
 public:
 	/**
-	 * The default months AIs start after eachother.
+	 * The default months AIs start after each other.
 	 */
 	enum StartNext {
 		START_NEXT_EASY   = DAYS_IN_YEAR * 2,
diff --git a/src/ai/ai_core.cpp b/src/ai/ai_core.cpp
index ab8510f..8ad3e67 100644
--- a/src/ai/ai_core.cpp
+++ b/src/ai/ai_core.cpp
@@ -197,7 +197,7 @@
 
 /* static */ void AI::ResetConfig()
 {
-	/* Check for both newgame as current game if we can reload the AIInfo insde
+	/* Check for both newgame as current game if we can reload the AIInfo inside
 	 *  the AIConfig. If not, remove the AI from the list (which will assign
 	 *  a random new AI on reload). */
 	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
diff --git a/src/ai/ai_scanner.hpp b/src/ai/ai_scanner.hpp
index 97fdba0..e09eca9 100644
--- a/src/ai/ai_scanner.hpp
+++ b/src/ai/ai_scanner.hpp
@@ -30,7 +30,7 @@ public:
 	/**
 	 * Check if we have an AI by name and version available in our list.
 	 * @param nameParam The name of the AI.
-	 * @param versionParam The versionof the AI, or -1 if you want the latest.
+	 * @param versionParam The version of the AI, or -1 if you want the latest.
 	 * @param force_exact_match Only match name+version, never latest.
 	 * @return NULL if no match found, otherwise the AI that matched.
 	 */