diff --git a/pkgs/development/coq-modules/ssprove/default.nix b/pkgs/development/coq-modules/ssprove/default.nix
index 876a0537cb40..6212990e8cc4 100644
--- a/pkgs/development/coq-modules/ssprove/default.nix
+++ b/pkgs/development/coq-modules/ssprove/default.nix
@@ -9,6 +9,7 @@
   mathcomp-experimental-reals,
   extructures,
   deriving,
+  mathcomp-word,
 }:
 
 (mkCoqDerivation {
@@ -67,6 +68,7 @@
     mathcomp-experimental-reals
     extructures
     deriving
+    mathcomp-word
   ];
 
   meta = with lib; {