diff --git a/src/auto/configure b/src/auto/configure
index 37a60fa..13eaea6 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -5823,6 +5823,9 @@
 	  MZSCHEME_CFLAGS="-DMZ_PRECISE_GC"
 	elif test -f "${path}/libracket3m.a"; then
 	  MZSCHEME_LIBS="${path}/libracket3m.a"
+	  if test -f "${path}/librktio.a"; then
+	    MZSCHEME_LIBS="${MZSCHEME_LIBS} ${path}/librktio.a"
+	  fi
 	  MZSCHEME_CFLAGS="-DMZ_PRECISE_GC"
 	elif test -f "${path}/libracket.a"; then
 	  MZSCHEME_LIBS="${path}/libracket.a ${path}/libmzgc.a"