diff --git a/src/main/java/liquibase/ext/cassandra/database/CassandraDatabase.java b/src/main/java/liquibase/ext/cassandra/database/CassandraDatabase.java
index 3094c0fd..af5e195b 100644
--- a/src/main/java/liquibase/ext/cassandra/database/CassandraDatabase.java
+++ b/src/main/java/liquibase/ext/cassandra/database/CassandraDatabase.java
@@ -59,7 +59,10 @@ public boolean isCorrectDatabaseImplementation(DatabaseConnection conn) throws D
 
 	@Override
 	public String getDefaultDriver(String url) {
-		return "com.simba.cassandra.jdbc42.Driver";
+		if (String.valueOf(url).startsWith("jdbc:cassandra:")) {
+			return "com.simba.cassandra.jdbc42.Driver";
+		}
+		return null;
 	}
 
 	@Override
diff --git a/src/main/java/liquibase/ext/cassandra/sqlgenerator/TagDatabaseGeneratorCassandra.java b/src/main/java/liquibase/ext/cassandra/sqlgenerator/TagDatabaseGeneratorCassandra.java
index e3bfdd38..da89bc14 100644
--- a/src/main/java/liquibase/ext/cassandra/sqlgenerator/TagDatabaseGeneratorCassandra.java
+++ b/src/main/java/liquibase/ext/cassandra/sqlgenerator/TagDatabaseGeneratorCassandra.java
@@ -15,6 +15,7 @@
 import liquibase.database.Database;
 import liquibase.database.ObjectQuotingStrategy;
 import liquibase.datatype.DataTypeFactory;
+import liquibase.exception.DatabaseException;
 import liquibase.ext.cassandra.database.CassandraDatabase;
 import liquibase.sql.Sql;
 import liquibase.sql.UnparsedSql;
@@ -79,13 +80,7 @@ public Sql[] generateSql(TagDatabaseStatement statement, Database database, SqlG
 
 			
 
-		} catch (SQLException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-			return super.generateSql(statement, database, sqlGeneratorChain);
-		} catch (ClassNotFoundException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
+		} catch (SQLException | DatabaseException e) {
 			return super.generateSql(statement, database, sqlGeneratorChain);
 		} finally {
 			database.setObjectQuotingStrategy(currentStrategy);
diff --git a/src/test/groovy/liquibase/ext/cassandra/database/CassandraDatabaseTest.groovy b/src/test/groovy/liquibase/ext/cassandra/database/CassandraDatabaseTest.groovy
index e0f63f74..3a0f3dc2 100644
--- a/src/test/groovy/liquibase/ext/cassandra/database/CassandraDatabaseTest.groovy
+++ b/src/test/groovy/liquibase/ext/cassandra/database/CassandraDatabaseTest.groovy
@@ -9,4 +9,11 @@ class CassandraDatabaseTest extends Specification {
         new CassandraDatabase().getShortName() == "cassandra"
     }
 
+    def getDefaultDriver() {
+        expect:
+        new CassandraDatabase().getDefaultDriver(null) == null
+        new CassandraDatabase().getDefaultDriver("jdbc:mysql://localhost") == null
+        new CassandraDatabase().getDefaultDriver("jdbc:cassandra://localhost") != null
+    }
+
 }