diff --git a/emp-tool/circuits/integer.h b/emp-tool/circuits/integer.h
index 727e88d..47e1911 100644
--- a/emp-tool/circuits/integer.h
+++ b/emp-tool/circuits/integer.h
@@ -6,6 +6,7 @@
 #include "emp-tool/circuits/comparable.h"
 #include "emp-tool/circuits/swappable.h"
 #include <vector>
+#include <bitset>
 #include <algorithm>
 #include <math.h>
 using std::vector;
diff --git a/emp-tool/utils/block.h b/emp-tool/utils/block.h
index 76bcb05..9947083 100644
--- a/emp-tool/utils/block.h
+++ b/emp-tool/utils/block.h
@@ -3,6 +3,7 @@
 #include <immintrin.h>
 #include <assert.h>
 #include <cstring>
+#include <iostream>
 #include <iomanip>
 
 namespace emp {