diff --git a/src/frontend/org/voltdb/jdbc/JDBC4PreparedStatement.java b/src/frontend/org/voltdb/jdbc/JDBC4PreparedStatement.java
index <HASH>..<HASH> 100644
--- a/src/frontend/org/voltdb/jdbc/JDBC4PreparedStatement.java
+++ b/src/frontend/org/voltdb/jdbc/JDBC4PreparedStatement.java
@@ -312,7 +312,7 @@ public class JDBC4PreparedStatement extends JDBC4Statement implements java.sql.P
     public void setFloat(int parameterIndex, float x) throws SQLException
     {
         checkParameterBounds(parameterIndex);
-        this.parameters[parameterIndex - 1] = x;
+        throw SQLError.noSupport();
     }
 
     // Sets the designated parameter to the given Java int value.
ENG-<I>: revert to master