diff --git a/package/libs/mbedtls/Makefile b/package/libs/mbedtls/Makefile
index 568ca283085..8990db6fdc8 100644
--- a/package/libs/mbedtls/Makefile
+++ b/package/libs/mbedtls/Makefile
@@ -156,6 +156,7 @@ define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib*.so* $(1)/usr/lib/
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib*.a $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/cmake $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 	$(CP) \
 		$(PKG_INSTALL_DIR)/usr/lib/pkgconfig/mbedcrypto.pc \