diff --git a/mod/common/src/main/java/gjum/minecraft/mapsync/common/MapSyncMod.java b/mod/common/src/main/java/gjum/minecraft/mapsync/common/MapSyncMod.java
index 1813dfe3..ce47224e 100644
--- a/mod/common/src/main/java/gjum/minecraft/mapsync/common/MapSyncMod.java
+++ b/mod/common/src/main/java/gjum/minecraft/mapsync/common/MapSyncMod.java
@@ -68,7 +68,7 @@ public MapSyncMod() {
 	 */
 	public abstract String getVersion();
 
-	protected abstract boolean isDevMode();
+	public abstract boolean isDevMode();
 
 	public abstract void registerKeyBinding(KeyMapping mapping);
 
diff --git a/mod/common/src/main/java/gjum/minecraft/mapsync/common/net/SyncClient.java b/mod/common/src/main/java/gjum/minecraft/mapsync/common/net/SyncClient.java
index 40d84312..5c3f9d55 100644
--- a/mod/common/src/main/java/gjum/minecraft/mapsync/common/net/SyncClient.java
+++ b/mod/common/src/main/java/gjum/minecraft/mapsync/common/net/SyncClient.java
@@ -1,6 +1,7 @@
 package gjum.minecraft.mapsync.common.net;
 
 import com.mojang.authlib.exceptions.AuthenticationException;
+import gjum.minecraft.mapsync.common.MapSyncMod;
 import gjum.minecraft.mapsync.common.data.ChunkTile;
 import gjum.minecraft.mapsync.common.net.encryption.EncryptionDecoder;
 import gjum.minecraft.mapsync.common.net.encryption.EncryptionEncoder;
@@ -245,16 +246,21 @@ void setUpEncryption(ChannelHandlerContext ctx, ClientboundEncryptionRequestPack
 			byte[] sharedSecret = new byte[16];
 			ThreadLocalRandom.current().nextBytes(sharedSecret);
 
-			// note that this is different from minecraft (we get no negative hashes)
-			final String shaHex = HexFormat.of().formatHex(Hasher.sha1()
-					.update(sharedSecret)
-					.update(packet.publicKey.getEncoded())
-					.generateHash()
-			);
-
-			User session = Minecraft.getInstance().getUser();
-			Minecraft.getInstance().getMinecraftSessionService().joinServer(
-					session.getGameProfile(), session.getAccessToken(), shaHex);
+			if (!MapSyncMod.getMod().isDevMode()) {
+				// note that this is different from minecraft (we get no negative hashes)
+				final String shaHex = HexFormat.of().formatHex(Hasher.sha1()
+						.update(sharedSecret)
+						.update(packet.publicKey.getEncoded())
+						.generateHash()
+				);
+
+				final User session = Minecraft.getInstance().getUser();
+				Minecraft.getInstance().getMinecraftSessionService().joinServer(
+						session.getGameProfile(),
+						session.getAccessToken(),
+						shaHex
+				);
+			}
 
 			try {
 				ctx.channel().writeAndFlush(new ServerboundEncryptionResponsePacket(
diff --git a/mod/fabric/src/main/java/gjum/minecraft/mapsync/fabric/FabricMapSyncMod.java b/mod/fabric/src/main/java/gjum/minecraft/mapsync/fabric/FabricMapSyncMod.java
index d1c48710..2562d224 100644
--- a/mod/fabric/src/main/java/gjum/minecraft/mapsync/fabric/FabricMapSyncMod.java
+++ b/mod/fabric/src/main/java/gjum/minecraft/mapsync/fabric/FabricMapSyncMod.java
@@ -26,7 +26,7 @@ public String getVersion() {
 	}
 
 	@Override
-	protected boolean isDevMode() {
+	public boolean isDevMode() {
 		return FabricLoader.getInstance().isDevelopmentEnvironment();
 	}
 
diff --git a/mod/forge/src/main/java/gjum/minecraft/mapsync/forge/ForgeMapSyncMod.java b/mod/forge/src/main/java/gjum/minecraft/mapsync/forge/ForgeMapSyncMod.java
index 2d06cc62..9e09e0c3 100644
--- a/mod/forge/src/main/java/gjum/minecraft/mapsync/forge/ForgeMapSyncMod.java
+++ b/mod/forge/src/main/java/gjum/minecraft/mapsync/forge/ForgeMapSyncMod.java
@@ -24,7 +24,7 @@ public String getVersion() {
 	}
 
 	@Override
-	protected boolean isDevMode() {
+	public boolean isDevMode() {
 		return !FMLLoader.isProduction();
 	}