diff --git a/huginn_callisto_network_agent.gemspec b/huginn_callisto_network_agent.gemspec
index 19f2993..1a3af2b 100644
--- a/huginn_callisto_network_agent.gemspec
+++ b/huginn_callisto_network_agent.gemspec
@@ -4,7 +4,7 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
 Gem::Specification.new do |spec|
   spec.name          = "huginn_callisto_network_agent"
-  spec.version       = '0.1.89'
+  spec.version       = '0.1.90'
   spec.authors       = ["Nicolas Germain"]
   spec.email         = ["ngermain@hihouhou.com"]
 
diff --git a/lib/huginn_callisto_network_agent/callisto_network_agent.rb b/lib/huginn_callisto_network_agent/callisto_network_agent.rb
index a7d2a7e..56954c7 100644
--- a/lib/huginn_callisto_network_agent/callisto_network_agent.rb
+++ b/lib/huginn_callisto_network_agent/callisto_network_agent.rb
@@ -198,7 +198,7 @@ def find_symbol(contract)
     def owner_finder(address=interpolated['wallet'])
 
       db = SQLite3::Database.new(interpolated['sql_db'])
-      result = db.get_first_row('SELECT name FROM directory WHERE address = ?', address)
+      result = db.get_first_row('SELECT name FROM directory WHERE address = ?', [address])
       db.close
 
       if result
@@ -217,14 +217,14 @@ def owner_finder(address=interpolated['wallet'])
     def function_finder(contract_address=interpolated['wallet'],bytes_signature)
 
       db = SQLite3::Database.new(interpolated['sql_db'])
-      result = db.get_first_row('SELECT text_signature FROM signatures WHERE bytes_signature = ? AND contract_address = ?', bytes_signature, contract_address)
+      result = db.get_first_row('SELECT text_signature FROM signatures WHERE bytes_signature = ? AND contract_address = ?', [bytes_signature, contract_address])
       db.close
 
       if result
         return result[0].split('(').first
       else
         db = SQLite3::Database.new(interpolated['sql_db'])
-        result = db.get_first_row('SELECT text_signature FROM signatures WHERE bytes_signature = ?', bytes_signature)
+        result = db.get_first_row('SELECT text_signature FROM signatures WHERE bytes_signature = ?', [bytes_signature])
         db.close
         if result
           return result[0].split('(').first