diff --git a/src/com/massivecraft/mcore/mcorecmd/CmdMCoreMStoreCopydb.java b/src/com/massivecraft/mcore/mcorecmd/CmdMCoreMStoreCopydb.java
index 25a6a62d..0a3ea92e 100644
--- a/src/com/massivecraft/mcore/mcorecmd/CmdMCoreMStoreCopydb.java
+++ b/src/com/massivecraft/mcore/mcorecmd/CmdMCoreMStoreCopydb.java
@@ -31,12 +31,22 @@ public class CmdMCoreMStoreCopydb extends MCoreCommand
 	{
 		// Args
 		final String fromAlias = this.arg(0);
+		final Db fromDb = MStore.getDb(fromAlias);
+		if (fromDb == null)
+		{
+			msg("<b>could not get the from-database.");
+			return;
+		}
+		
 		final String toAlias = this.arg(1);
+		final Db toDb = MStore.getDb(toAlias);
+		if (toDb == null)
+		{
+			msg("<b>could not get the to-database.");
+			return;
+		}
 		
 		// Prepare
-		final Db fromDb = MStore.getDb(fromAlias);
-		final Db toDb = MStore.getDb(toAlias);
-		
 		final Driver fromDriver = fromDb.getDriver();
 		final Driver toDriver = toDb.getDriver();
 		
diff --git a/src/com/massivecraft/mcore/store/MongoGsonConverter.java b/src/com/massivecraft/mcore/store/MongoGsonConverter.java
index daee022e..1c0f34f9 100644
--- a/src/com/massivecraft/mcore/store/MongoGsonConverter.java
+++ b/src/com/massivecraft/mcore/store/MongoGsonConverter.java
@@ -70,7 +70,7 @@ public final class MongoGsonConverter
 		if (inElement.isJsonNull()) return null;
 		JsonPrimitive in = inElement.getAsJsonPrimitive();
 		if (in.isBoolean()) return in.getAsBoolean();
-		if (in.isNumber()) return in.getAsNumber();
+		if (in.isNumber()) return in.getAsNumber().doubleValue();
 		if (in.isString()) return in.getAsString();
 		throw new IllegalArgumentException("Unsupported value type for: " + in);
 	}