diff --git a/m4/libxc.m4 b/m4/libxc.m4
index 210ad05294801b0e163ae9138347367649aa5af9..11b15f9ebd5b62748e5a8899107d1dd00d389656 100644
--- a/m4/libxc.m4
+++ b/m4/libxc.m4
@@ -29,9 +29,11 @@ dnl if not, use environment variables or defaults
 AC_ARG_WITH(libxc-prefix, [AS_HELP_STRING([--with-libxc-prefix=DIR], [Directory where libxc was installed.])])
 
 # Set FCFLAGS_LIBXC only if not set from environment
+# Note: Most distros package fortran modules in /usr/include, but Fedora and RHEL via epel (and its derivatives) package it in /usr/lib64/gfortran/modules.
+#       We include both paths here as this will only lead to a warning of folder not found at most.
 if test x"$FCFLAGS_LIBXC" = x; then
   case $with_libxc_prefix in
-    "") FCFLAGS_LIBXC="$ax_cv_f90_modflag/usr/include" ;;
+    "") FCFLAGS_LIBXC="$ax_cv_f90_modflag/usr/include $ax_cv_f90_modflag/usr/lib64/gfortran/modules" ;;
     *)  FCFLAGS_LIBXC="$ax_cv_f90_modflag$with_libxc_prefix/include" ;;
   esac
 fi