diff --git a/CMakeLists.txt b/CMakeLists.txt
index 77ecf3e9e..b78ebcbec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -287,14 +287,6 @@ if (USE_BOOST)
       set (Boost_VERSION "${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
     endif ()
     set (OPENTURNS_HAVE_BOOST TRUE)
-    if (USE_MPFR)
-      find_package (MPFR)
-      if (MPFR_FOUND)
-        set (OPENTURNS_HAVE_MPFR TRUE)
-        list (APPEND OPENTURNS_PRIVATE_INCLUDE_DIRS ${MPFR_INCLUDE_DIRS})
-        list (APPEND OPENTURNS_PRIVATE_LIBRARIES ${MPFR_LIBRARIES})
-      endif ()
-    endif ()
     if (USE_MPC AND NOT Boost_VERSION VERSION_LESS 1.68)
       find_package (MPC)
       if (MPC_FOUND)
@@ -303,6 +295,14 @@ if (USE_BOOST)
         list (APPEND OPENTURNS_PRIVATE_LIBRARIES ${MPC_LIBRARIES})
       endif ()
     endif ()
+    if (USE_MPFR)
+      find_package (MPFR)
+      if (MPFR_FOUND)
+        set (OPENTURNS_HAVE_MPFR TRUE)
+        list (APPEND OPENTURNS_PRIVATE_INCLUDE_DIRS ${MPFR_INCLUDE_DIRS})
+        list (APPEND OPENTURNS_PRIVATE_LIBRARIES ${MPFR_LIBRARIES})
+      endif ()
+    endif ()
     if((USE_MPC OR USE_MPFR) AND NOT BUILD_SHARED_LIBS)
         find_library(GMP_LIBRARY NAMES gmp)
         list (APPEND OPENTURNS_PRIVATE_LIBRARIES ${GMP_LIBRARY})