# Fixes musl builds: https://github.com/asottile/ukkonen/pull/7
diff --git a/_ukkonen.cpp b/_ukkonen.cpp
index 0acf39a..5060887 100644
--- a/_ukkonen.cpp
+++ b/_ukkonen.cpp
@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <cstdint>
 #include <vector>
 
 template <typename T> int64_t edit_distance_k_impl(
