diff --git a/CMakeLists.txt b/CMakeLists.txt
index f06220661..a691d4366 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ endif()
 
 set(IMEX_EXTERNAL_PROJECT_BUILD OFF)
 
-set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -Wall -Werror -Wnon-virtual-dtor")
+set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -Wall -Wnon-virtual-dtor")
 
 if(NOT (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) AND NOT DEFINED MLIR_BINARY_DIR)
     # Building as part of LLVM via the external project mechanism.