diff --git a/libraries/mbed/common/BusIn.cpp b/libraries/mbed/common/BusIn.cpp
index 56885ba9db..ea67cbcb80 100644
--- a/libraries/mbed/common/BusIn.cpp
+++ b/libraries/mbed/common/BusIn.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 #include "BusIn.h"
+#include "mbed_assert.h"
 
 namespace mbed {
 
diff --git a/libraries/mbed/common/BusInOut.cpp b/libraries/mbed/common/BusInOut.cpp
index 3e56e61729..5575f90d41 100644
--- a/libraries/mbed/common/BusInOut.cpp
+++ b/libraries/mbed/common/BusInOut.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 #include "BusInOut.h"
+#include "mbed_assert.h"
 
 namespace mbed {
 
diff --git a/libraries/mbed/common/BusOut.cpp b/libraries/mbed/common/BusOut.cpp
index 7368c00e6a..4277c57272 100644
--- a/libraries/mbed/common/BusOut.cpp
+++ b/libraries/mbed/common/BusOut.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 #include "BusOut.h"
+#include "mbed_assert.h"
 
 namespace mbed {