diff --git a/src/main/java/com/gtnewhorizons/retrofuturabootstrap/RfbSystemClassLoader.java b/src/main/java/com/gtnewhorizons/retrofuturabootstrap/RfbSystemClassLoader.java
index ee7c80d..a4d46f2 100644
--- a/src/main/java/com/gtnewhorizons/retrofuturabootstrap/RfbSystemClassLoader.java
+++ b/src/main/java/com/gtnewhorizons/retrofuturabootstrap/RfbSystemClassLoader.java
@@ -81,7 +81,9 @@ public final class RfbSystemClassLoader extends URLClassLoaderWithUtilities impl
                 "org.objectweb.asm.",
                 "LZMA.",
                 "org.slf4j.",
-                "com.gtnewhorizons.retrofuturabootstrap."));
+                "com.gtnewhorizons.retrofuturabootstrap.",
+                "pro.gravit.launcher.",
+                "pro.gravit.utils."));
     }
 
     /** Invoked by Java itself */
diff --git a/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java b/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
index 874ecf7..3da161b 100644
--- a/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
+++ b/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
@@ -144,7 +144,9 @@ public class LaunchClassLoader extends URLClassLoaderWithUtilities implements Ex
                 "org.objectweb.asm.",
                 "net.minecraft.launchwrapper.",
                 "org.slf4j.",
-                "com.gtnewhorizons.retrofuturabootstrap."));
+                "com.gtnewhorizons.retrofuturabootstrap.",
+                "pro.gravit.launcher.",
+                "pro.gravit.utils."));
         transformerExceptions.addAll(Arrays.asList(
                 "javax.",
                 "argo.",