diff --git a/uppsrc/MSSQL/MSSQL.h b/uppsrc/MSSQL/MSSQL.h
index 407969a97..b80bbc5d8 100644
--- a/uppsrc/MSSQL/MSSQL.h
+++ b/uppsrc/MSSQL/MSSQL.h
@@ -3,6 +3,8 @@
 
 #include "ODBC/ODBC.h"
 
+// debian: sudo apt-get install unixodbc-dev
+
 namespace Upp {
 
 String MsSqlTextType(int width);
diff --git a/uppsrc/MySql/MySql.h b/uppsrc/MySql/MySql.h
index dd5d5662f..214baa27b 100644
--- a/uppsrc/MySql/MySql.h
+++ b/uppsrc/MySql/MySql.h
@@ -1,6 +1,8 @@
 #ifndef __mysql_h__
 #define __mysql_h__
 
+// debian: sudo apt-get install libmysqlclient-dev
+
 #ifndef flagNOMYSQL
 
 #include <Sql/Sql.h>
diff --git a/uppsrc/ODBC/ODBC.cpp b/uppsrc/ODBC/ODBC.cpp
index cad128dda..88cae540f 100644
--- a/uppsrc/ODBC/ODBC.cpp
+++ b/uppsrc/ODBC/ODBC.cpp
@@ -615,7 +615,7 @@ bool ODBCConnection::Fetch0()
 			int ct = string_type[i];
 			if(!IsOk(SQLGetData(session->hstmt, i + 1, ct, &tm, 0, &li)))
 			   break;
-			if(li != SQL_NULL_DATA && li >= 0)
+			if(li != SQL_NULL_DATA && li >= 0) {
 				if(ct == SQL_C_WCHAR) {
 					WStringBuffer sb;
 					sb.SetLength(li / 2);
@@ -630,6 +630,7 @@ bool ODBCConnection::Fetch0()
 					   break;
 					v = String(sb);
 				}
+			}
 			break;
 		}
 		fetchrow.Add(v);
diff --git a/uppsrc/ODBC/ODBC.h b/uppsrc/ODBC/ODBC.h
index 306e446da..6bc5e6f0c 100644
--- a/uppsrc/ODBC/ODBC.h
+++ b/uppsrc/ODBC/ODBC.h
@@ -5,6 +5,8 @@
 #include <sql.h>
 #include <sqlext.h>
 
+// debian: apt-get install unixodbc-dev
+
 namespace Upp {
 
 bool   ODBCPerformScript(const String& text, StatementExecutor& executor, Gate2<int, int> progress_canceled = false);
diff --git a/uppsrc/PostgreSQL/PostgreSQL.h b/uppsrc/PostgreSQL/PostgreSQL.h
index 339bf6186..e27c4020c 100644
--- a/uppsrc/PostgreSQL/PostgreSQL.h
+++ b/uppsrc/PostgreSQL/PostgreSQL.h
@@ -10,6 +10,8 @@
 #include <postgresql/libpq-fe.h>
 #endif
 
+// debian: sudo apt-get install libpq-dev
+
 namespace Upp {
 
 // Postgre -> Value types