diff --git a/libc/utils/MPFRWrapper/CMakeLists.txt b/libc/utils/MPFRWrapper/CMakeLists.txt
--- a/libc/utils/MPFRWrapper/CMakeLists.txt
+++ b/libc/utils/MPFRWrapper/CMakeLists.txt
@@ -12,6 +12,7 @@
     MPFRUtils.cpp
     MPFRUtils.h
   )
+  target_link_libraries(libcMPFRWrapper -lmpfr -lgmp)
 else()
   message(WARNING "Math tests using MPFR will be skipped.")
 endif()