diff --git a/CMakeLists.txt b/CMakeLists.txt
index d942d31cc..906a1fc6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -592,9 +592,6 @@ else()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ARCH_FLAG}")
 
   set(WARNINGS "-Wall -Wextra -Wpointer-arith -Wundef -Wvla -Wwrite-strings -Wno-error=extra -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-variable -Wno-error=unused-variable -Wno-error=undef -Wno-error=uninitialized")
-  if(NOT MINGW)
-    set(WARNINGS_AS_ERRORS_FLAG "-Werror")
-  endif()
   if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
     if(ARM)
       set(WARNINGS "${WARNINGS} -Wno-error=inline-asm")
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index 990a05c08..3bebbe0d2 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -26,10 +26,5 @@
 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-# warnings are cleared only for GCC on Linux
-if (NOT (MINGW OR APPLE OR FREEBSD OR OPENBSD OR DRAGONFLY))
-  add_compile_options("${WARNINGS_AS_ERRORS_FLAG}") # applies only to targets that follow
-endif()
-
 add_subdirectory(epee)
 
diff --git a/contrib/epee/tests/src/CMakeLists.txt b/contrib/epee/tests/src/CMakeLists.txt
index c7d31735b..4807fa7ea 100644
--- a/contrib/epee/tests/src/CMakeLists.txt
+++ b/contrib/epee/tests/src/CMakeLists.txt
@@ -14,8 +14,8 @@ IF (MSVC)
 	include_directories(SYSTEM platform/msvc)
 ELSE()
 	# set stuff for other systems
-	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -Wall -Werror")
-	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Werror -Wno-reorder")
+	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -Wall")
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wno-reorder")
 ENDIF()
 
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6ee7effdd..a0b62da77 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,11 +34,6 @@ if (WIN32 OR STATIC)
   add_definitions(-DMINIUPNP_STATICLIB)
 endif ()
 
-# warnings are cleared only for GCC on Linux
-if (NOT (MINGW OR APPLE OR FREEBSD OR OPENBSD OR DRAGONFLY))
-  add_compile_options("${WARNINGS_AS_ERRORS_FLAG}") # applies only to targets that follow
-endif()
-
 function (monero_private_headers group)
   source_group("${group}\\Private"
     FILES