diff --git a/host/lib/db_flexrf.cc b/host/lib/db_flexrf.cc
index 2819c19..ddd8701 100644
--- a/host/lib/db_flexrf.cc
+++ b/host/lib/db_flexrf.cc
@@ -24,6 +24,9 @@
 
 #include <usrp/db_flexrf.h>
 #include <db_base_impl.h>
+#ifdef HAVE_TIME_H
+#include <ctime>
+#endif
 
 // d'board i/o pin defs
 // Tx and Rx have shared defs, but different i/o regs
diff --git a/host/lib/db_wbxng.cc b/host/lib/db_wbxng.cc
index 8920065..4d17c72 100644
--- a/host/lib/db_wbxng.cc
+++ b/host/lib/db_wbxng.cc
@@ -26,6 +26,9 @@
 #include "db_wbxng_adf4350.h"
 #include <db_base_impl.h>
 #include <stdio.h>
+#ifdef HAVE_TIME_H
+#include <ctime>
+#endif
 
 // d'board i/o pin defs
 // Tx and Rx have shared defs, but different i/o regs
diff --git a/host/lib/fusb_win32.cc b/host/lib/fusb_win32.cc
index 8900576..8c21853 100644
--- a/host/lib/fusb_win32.cc
+++ b/host/lib/fusb_win32.cc
@@ -29,6 +29,7 @@
 #include <assert.h>
 #include <stdexcept>
 #include <string.h>
+#include <cstdio>
 
 static const int MAX_BLOCK_SIZE = fusb_sysconfig::max_block_size();
 static const int DEFAULT_BLOCK_SIZE = MAX_BLOCK_SIZE;