diff --git a/ortools/math_opt/cpp/CMakeLists.txt b/ortools/math_opt/cpp/CMakeLists.txt
index a4e3b0e0dd..cc9dd125c3 100644
--- a/ortools/math_opt/cpp/CMakeLists.txt
+++ b/ortools/math_opt/cpp/CMakeLists.txt
@@ -33,7 +33,7 @@ ortools_cxx_library(
     "matchers.cc"
     "matchers.h"
   TYPE
-    SHARED
+    STATIC
   LINK_LIBRARIES
     absl::log
     absl::status