diff --git a/lib/include/srslte/phy/fec/softbuffer.h b/lib/include/srslte/phy/fec/softbuffer.h
index a16a55962..c43b90ff7 100644
--- a/lib/include/srslte/phy/fec/softbuffer.h
+++ b/lib/include/srslte/phy/fec/softbuffer.h
@@ -23,6 +23,7 @@
 #define SRSLTE_SOFTBUFFER_H
 
 #include "srslte/config.h"
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {