diff --git a/libc/shared/math/frexpf128.h b/libc/shared/math/frexpf128.h
index 14554c7cb33a8..6b922bd731295 100644
--- a/libc/shared/math/frexpf128.h
+++ b/libc/shared/math/frexpf128.h
@@ -14,6 +14,7 @@
 #ifdef LIBC_TYPES_HAS_FLOAT128
 
 #include "shared/libc_common.h"
+#include "src/__support/math/frexpf128.h"
 
 namespace LIBC_NAMESPACE_DECL {
 namespace shared {
diff --git a/libc/src/__support/FPUtil/ManipulationFunctions.h b/libc/src/__support/FPUtil/ManipulationFunctions.h
index 9c10011ccd203..ea9ee5a57c36d 100644
--- a/libc/src/__support/FPUtil/ManipulationFunctions.h
+++ b/libc/src/__support/FPUtil/ManipulationFunctions.h
@@ -29,7 +29,7 @@ namespace LIBC_NAMESPACE_DECL {
 namespace fputil {
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-LIBC_INLINE T frexp(T x, int &exp) {
+LIBC_INLINE constexpr T frexp(T x, int &exp) {
   FPBits<T> bits(x);
   if (bits.is_inf_or_nan()) {
 #ifdef LIBC_FREXP_INF_NAN_EXPONENT