diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index ba80965b5aaaf3..d6dbad661cb738 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -189,6 +189,7 @@ add_header_library(
     integer_utils.h
   DEPENDS
     .bit
+    .math_extras
     .number_pair
     libc.src.__support.common
     libc.src.__support.CPP.type_traits
diff --git a/libc/src/__support/integer_utils.h b/libc/src/__support/integer_utils.h
index 433e99227bcfd4..661318f03bfd31 100644
--- a/libc/src/__support/integer_utils.h
+++ b/libc/src/__support/integer_utils.h
@@ -13,6 +13,7 @@
 #include "src/__support/common.h"
 
 #include "bit.h"
+#include "math_extras.h"
 #include "number_pair.h"
 
 #include <stdint.h>