diff --git a/config/companion_libs/gmp.in b/config/companion_libs/gmp.in
index dd818a07..8c4496cf 100644
--- a/config/companion_libs/gmp.in
+++ b/config/companion_libs/gmp.in
@@ -8,7 +8,7 @@ choice
 
 config GMP_V_5_0_1
     bool
-    prompt "5.0.1"
+    prompt "5.0.1 (EXPERIMENTAL)"
     depends on EXPERIMENTAL
 
 config GMP_V_4_3_2