diff --git a/src/crypto.cpp b/src/crypto.cpp
index a3a9d9b..6cf076a 100644
--- a/src/crypto.cpp
+++ b/src/crypto.cpp
@@ -42,7 +42,7 @@
 #include "dot11/dot11_data.h"
 #include "dot11/dot11_beacon.h"
 #include "exceptions.h"
-#include "utils.h"
+#include "utils/checksum_utils.h"
 #include "detail/type_traits.h"
 
 using std::string;
diff --git a/src/icmp_extension.cpp b/src/icmp_extension.cpp
index 095c127..13eeabb 100644
--- a/src/icmp_extension.cpp
+++ b/src/icmp_extension.cpp
@@ -31,9 +31,9 @@
 #include <cstring>
 #include "icmp_extension.h"
 #include "exceptions.h"
-#include "utils.h"
 #include "memory_helpers.h"
 #include "mpls.h"
+#include "utils/checksum_utils.h"
 
 using std::runtime_error;