diff --git a/src/tools/map_extractor/DB2.cpp b/src/tools/map_extractor/DB2.cpp
index 52d4a1544af..55fe114bf3c 100644
--- a/src/tools/map_extractor/DB2.cpp
+++ b/src/tools/map_extractor/DB2.cpp
@@ -16,6 +16,7 @@
  */
 
 #include "DB2.h"
+#include <cassert>
 
 DB2FileLoader::DB2FileLoader()
 {
diff --git a/src/tools/vmap4_extractor/DB2.cpp b/src/tools/vmap4_extractor/DB2.cpp
index 52d4a1544af..55fe114bf3c 100644
--- a/src/tools/vmap4_extractor/DB2.cpp
+++ b/src/tools/vmap4_extractor/DB2.cpp
@@ -16,6 +16,7 @@
  */
 
 #include "DB2.h"
+#include <cassert>
 
 DB2FileLoader::DB2FileLoader()
 {