diff --git a/src/common/db.cpp b/src/common/db.cpp
index 4617ff18d7..0a6ab1db6e 100644
--- a/src/common/db.cpp
+++ b/src/common/db.cpp
@@ -2612,12 +2612,12 @@ bool GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDes
  * description upon return
  */
 {
-	SWORD cb;
+	SWORD cb1,cb2;
 
-	if (SQLDataSources(henv, direction, (UCHAR FAR *) Dsn, DsnMax, &cb,
-							 (UCHAR FAR *) DsDesc, DsDescMax, &cb) == SQL_SUCCESS)
+	if (SQLDataSources(henv, direction, (UCHAR FAR *) Dsn, DsnMax, &cb1,
+							 (UCHAR FAR *) DsDesc, DsDescMax, &cb2) == SQL_SUCCESS)
 	{
-		DsDesc[cb+1] = 0;  // Set the terminating character for the string
+		DsDesc[cb2+1] = 0;  // Set the terminating character for the string
 		return(TRUE);
 	}
 	else