diff --git a/lib/include/srsran/radio/channel_mapping.h b/lib/include/srsran/radio/channel_mapping.h
index 7c5ddac84..e3c74dad2 100644
--- a/lib/include/srsran/radio/channel_mapping.h
+++ b/lib/include/srsran/radio/channel_mapping.h
@@ -17,6 +17,7 @@
 #include <list>
 #include <map>
 #include <mutex>
+#include <string>
 
 namespace srsran {