diff --git a/configure b/configure
index 83610b0db8..6df4306c88 100755
--- a/configure
+++ b/configure
@@ -618,6 +618,7 @@ Darwin)
   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
     cpu="x86_64"
   fi
+  HOST_DSOSUF=".dylib"
   ;;
 SunOS)
   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo