diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8f3a170d6..14fca2cde 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ set(CMAKE_AUTOMOC OFF)
 
 if(${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
 else()
-	set(CMAKE_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wconversion")
+	set(CMAKE_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wconversion -Wno-unknown-pragmas")
 endif()
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
diff --git a/libevmjit-cpp/Env.cpp b/libevmjit-cpp/Env.cpp
index cdca56b99..ba1f4661e 100644
--- a/libevmjit-cpp/Env.cpp
+++ b/libevmjit-cpp/Env.cpp
@@ -1,4 +1,5 @@
 
+#pragma GCC diagnostic ignored "-Wconversion"
 #include <libdevcrypto/SHA3.h>
 #include <libevm/FeeStructure.h>
 #include <libevm/ExtVMFace.h>
diff --git a/libevmjit-cpp/JitVM.cpp b/libevmjit-cpp/JitVM.cpp
index 53282e3ae..55dcd94f8 100644
--- a/libevmjit-cpp/JitVM.cpp
+++ b/libevmjit-cpp/JitVM.cpp
@@ -1,4 +1,5 @@
 
+#pragma GCC diagnostic ignored "-Wconversion"
 #include "JitVM.h"
 #include <libevm/VM.h>
 #include <libevm/VMFactory.h>