diff --git a/pkgs/by-name/li/libwebm/package.nix b/pkgs/by-name/li/libwebm/package.nix
index c2660df0aa0e..0ba8f021897d 100644
--- a/pkgs/by-name/li/libwebm/package.nix
+++ b/pkgs/by-name/li/libwebm/package.nix
@@ -4,6 +4,8 @@
   fetchFromGitHub,
   cmake,
   nix-update-script,
+
+  isStatic ? stdenv.hostPlatform.isStatic,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -34,7 +36,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   cmakeFlags = [
-    "-DBUILD_SHARED_LIBS=ON"
+    (lib.cmakeBool "BUILD_SHARED_LIBS" (!isStatic))
   ];
 
   passthru.updateScript = nix-update-script {