diff --git a/src/main/java/net/md_5/specialsource/JarMapping.java b/src/main/java/net/md_5/specialsource/JarMapping.java
index a2c2f8c..994cfe7 100644
--- a/src/main/java/net/md_5/specialsource/JarMapping.java
+++ b/src/main/java/net/md_5/specialsource/JarMapping.java
@@ -49,7 +49,7 @@ public class JarMapping {
     public final Map<String, String> methods = new HashMap<String, String>();
     private InheritanceMap inheritanceMap = new InheritanceMap();
     private InheritanceProvider fallbackInheritanceProvider = null;
-    private Set<String> ignoredPackages = new HashSet<String>();
+    private Set<String> excludedPackages = new HashSet<String>();
 
     public JarMapping() {
     }
@@ -75,13 +75,13 @@ public class JarMapping {
      * Add a class name prefix to the mapping ignore list.
      * Note: this only applies before loading mappings, not after
      */
-    public void addProtectedPackage(String packageName) {
+    public void addExcludedPackage(String packageName) {
         SpecialSource.log("Protecting Package: " + packageName);
-        ignoredPackages.add(packageName);
+        excludedPackages.add(packageName);
     }
 
-    private boolean isProtectedPackage(String desc) {
-        for (String packageName : ignoredPackages) {
+    private boolean isExcludedPackage(String desc) {
+        for (String packageName : excludedPackages) {
             if (desc.startsWith(packageName)) {
                 return true;
             }
@@ -325,7 +325,7 @@ public class JarMapping {
                 oldClassName = temp;
             }
 
-            if (isProtectedPackage(oldClassName)) {
+            if (isExcludedPackage(oldClassName)) {
                 SpecialSource.log("Ignored CL: " + oldClassName + " " + newClassName);
                 return;
             }
@@ -354,7 +354,7 @@ public class JarMapping {
                 oldPackageName = temp;
             }
 
-            if (isProtectedPackage(oldPackageName)) {
+            if (isExcludedPackage(oldPackageName)) {
                 SpecialSource.log("Ignored PK: " + oldPackageName + " -> " + newPackageName);
                 return;
             }
@@ -399,7 +399,7 @@ public class JarMapping {
                 oldFieldName = temp;
             }
 
-            if (isProtectedPackage(oldClassName)) {
+            if (isExcludedPackage(oldClassName)) {
                 SpecialSource.log("Ignored FD: " + oldClassName + "/" + oldFieldName + " -> " +  newFieldName);
                 return;
             }
@@ -434,7 +434,7 @@ public class JarMapping {
                 oldMethodName = temp;
             }
 
-            if (isProtectedPackage(oldClassName)) {
+            if (isExcludedPackage(oldClassName)) {
                 SpecialSource.log("Ignored MD: " + oldClassName + "/" + oldMethodName + " -> " +  newMethodName);
                 return;
             }
diff --git a/src/main/java/net/md_5/specialsource/SpecialSource.java b/src/main/java/net/md_5/specialsource/SpecialSource.java
index 414d96f..5c07aaa 100644
--- a/src/main/java/net/md_5/specialsource/SpecialSource.java
+++ b/src/main/java/net/md_5/specialsource/SpecialSource.java
@@ -121,7 +121,7 @@ public class SpecialSource {
                 acceptsAll(asList("d", "identifier"), "Identifier to place on each class that is transformed, by default, none")
                         .withRequiredArg()
                         .ofType(String.class);
-                acceptsAll(asList("p", "ignored-packages"), "A comma seperated list of packages that should not be transformed, even if the srg specifies they should")
+                acceptsAll(asList("e", "excluded-packages"), "A comma seperated list of packages that should not be transformed, even if the srg specifies they should")
                         .withRequiredArg()
                         .ofType(String.class);
             }
@@ -162,10 +162,10 @@ public class SpecialSource {
             identifier = (String)options.valueOf("identifier");
         }
 
-        String[] ignored = new String[0];
-        if (options.has("ignored-packages"))
+        String[] excluded = new String[0];
+        if (options.has("excluded-packages"))
         {
-            ignored = ((String)options.valueOf("ignored-packages")).split(",");
+            excluded = ((String)options.valueOf("excluded-packages")).split(",");
         }
 
         FileLocator.useCache = !options.has("force-redownload");
@@ -182,17 +182,17 @@ public class SpecialSource {
             visit(new Pair<Jar>(jar1, jar2), new Pair<JarComparer>(visitor1, visitor2), new Pair<String>(jar1.getMain(), jar2.getMain()));
 
             jarMapping = new JarMapping(visitor1, visitor2, (File) options.valueOf("srg-out"), options.has("compact"), options.has("generate-dupes"));
-            for (String pkg : ignored)
+            for (String pkg : excluded)
             {
-                jarMapping.addProtectedPackage(pkg);
+                jarMapping.addExcludedPackage(pkg);
             }
         } else if (options.has("srg-in")) {
             log("Loading mappings");
 
             jarMapping = new JarMapping();
-            for (String pkg : ignored)
+            for (String pkg : excluded)
             {
-                jarMapping.addProtectedPackage(pkg);
+                jarMapping.addExcludedPackage(pkg);
             }
 
             // Loading options