diff --git a/libevmjit/CMakeLists.txt b/libevmjit/CMakeLists.txt
index 1990ec398..575ea5ed7 100644
--- a/libevmjit/CMakeLists.txt
+++ b/libevmjit/CMakeLists.txt
@@ -22,4 +22,4 @@ target_link_libraries(${TARGET_NAME} PRIVATE gmp)
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
 
 install(TARGETS ${TARGET_NAME} LIBRARY DESTINATION lib)
-install(FILES ${INTERFACE_HEADERS} DESTINATION include/${TARGET_NAME})
+#install(FILES ${INTERFACE_HEADERS} DESTINATION include/${TARGET_NAME})
diff --git a/libevmjit/interface.h b/libevmjit/interface.h
index 5d9307ab2..4cac78d56 100644
--- a/libevmjit/interface.h
+++ b/libevmjit/interface.h
@@ -15,40 +15,6 @@ typedef struct evmjit_result
 
 evmjit_result evmjit_run(void* _data, void* _env);
 
-// JIT object opaque type
-typedef struct evm_jit evm_jit;
-
-// Contract execution return code
-typedef int evm_jit_return_code;
-
-// Host-endian 256-bit integer type
-typedef struct i256 i256;
-
-struct i256
-{
-	char b[33];
-};
-
-// Big-endian right aligned 256-bit hash
-typedef struct h256 h256;
-
-// Runtime data struct - must be provided by external language (Go, C++, Python)
-typedef struct evm_jit_rt evm_jit_rt;
-
-// Runtime callback functions  - implementations must be provided by external language (Go, C++, Python)
-void evm_jit_rt_sload(evm_jit_rt* _rt, i256* _index, i256* _ret);
-void evm_jit_rt_sstore(evm_jit_rt* _rt, i256* _index, i256* _value);
-void evm_jit_rt_balance(evm_jit_rt* _rt, h256* _address, i256* _ret);
-// And so on...
-
-evm_jit* evm_jit_create(evm_jit_rt* _runtime_data);
-
-evm_jit_return_code evm_jit_execute(evm_jit* _jit);
-
-void evm_jit_get_return_data(evm_jit* _jit, char* _return_data_offset, size_t* _return_data_size);
-
-void evm_jit_destroy(evm_jit* _jit);
-
 #ifdef __cplusplus
 }
 #endif