diff --git a/dbaccess/source/core/api/RowSet.cxx b/dbaccess/source/core/api/RowSet.cxx
index a75a155441b3..1042d84531bc 100644
--- a/dbaccess/source/core/api/RowSet.cxx
+++ b/dbaccess/source/core/api/RowSet.cxx
@@ -17,7 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-
+#include <string.h>
 #include "RowSet.hxx"
 #include "dbastrings.hrc"
 #include "sdbcoretools.hxx"
diff --git a/dbaccess/source/core/api/SingleSelectQueryComposer.cxx b/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
index 55aa752d4f00..faef30832cc1 100644
--- a/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
+++ b/dbaccess/source/core/api/SingleSelectQueryComposer.cxx
@@ -17,7 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-
+#include <string.h>
 #include "composertools.hxx"
 #include "core_resource.hrc"
 #include "core_resource.hxx"
diff --git a/dbaccess/source/core/dataaccess/ContentHelper.cxx b/dbaccess/source/core/dataaccess/ContentHelper.cxx
index fed2637e58f7..08cdd7e9c7ec 100644
--- a/dbaccess/source/core/dataaccess/ContentHelper.cxx
+++ b/dbaccess/source/core/dataaccess/ContentHelper.cxx
@@ -17,6 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <string.h>
 #include "ContentHelper.hxx"
 #include <ucbhelper/cancelcommandexecution.hxx>
 #include <comphelper/property.hxx>