diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 6970cd277..5e4c6e398 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -332,7 +332,7 @@ def checkSqlInjection(place, parameter, value):
                             _ = randomInt(2)
                             origValue = "%s AND %s=%s" % (value, _, _ + 1)
                         elif conf.invalidBignum:
-                            origValue = randomInt(6)
+                            origValue = "%d.%d" % (randomInt(6), randomInt(1))
                         else:
                             origValue = "-%s" % randomInt()
                         templatePayload = agent.payload(place, parameter, newValue=origValue, where=where)
diff --git a/lib/core/agent.py b/lib/core/agent.py
index a05648dcb..6213935e9 100644
--- a/lib/core/agent.py
+++ b/lib/core/agent.py
@@ -117,7 +117,7 @@ class Agent(object):
                     _ = randomInt(2)
                     value = "%s%s AND %s=%s" % (origValue, match.group() if match else "", _, _ + 1)
                 elif conf.invalidBignum:
-                    value = randomInt(6)
+                    value = "%d.%d" % (randomInt(6), randomInt(1))
                 else:
                     if newValue.startswith("-"):
                         value = ""