diff --git a/userspace/falco/app_actions/create_signal_handlers.cpp b/userspace/falco/app_actions/create_signal_handlers.cpp
index 4b69e468..05bd1f78 100644
--- a/userspace/falco/app_actions/create_signal_handlers.cpp
+++ b/userspace/falco/app_actions/create_signal_handlers.cpp
@@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+#include <string.h>
 #include <signal.h>
 
 #include "create_signal_handlers.h"