diff --git a/org.eclipse.xtext/src/org/eclipse/xtext/preferences/PreferenceKey.java b/org.eclipse.xtext/src/org/eclipse/xtext/preferences/PreferenceKey.java
index 9c81d7971..0dc0c417e 100644
--- a/org.eclipse.xtext/src/org/eclipse/xtext/preferences/PreferenceKey.java
+++ b/org.eclipse.xtext/src/org/eclipse/xtext/preferences/PreferenceKey.java
@@ -39,7 +39,7 @@ public class PreferenceKey {
 
 	@Override
 	public String toString() {
-		return "Configration key '" + id + "' default value '" + getDefaultValue() + "'.";
+		return "Configuration key '" + id + "' default value '" + getDefaultValue() + "'.";
 	}
 
 	@Override
@@ -66,4 +66,4 @@ public class PreferenceKey {
 			return false;
 		return true;
 	}
-}
\ No newline at end of file
+}