diff --git a/CMakeModules/LibWebRTCSubsystem.cmake b/CMakeModules/LibWebRTCSubsystem.cmake
index 929276b..8df19e5 100644
--- a/CMakeModules/LibWebRTCSubsystem.cmake
+++ b/CMakeModules/LibWebRTCSubsystem.cmake
@@ -37,3 +37,10 @@ endif (TARGET_CPU STREQUAL "")
 if (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
   message(FATAL_ERROR "Unknown value '${TARGET_CPU}' for variable TARGET_CPU, the following values are supported: ${TARGET_CPU_LIST}")
 endif (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
+
+if (UNIX)
+  if (TARGET_CPU STREQUAL "x86")
+    set(CMAKE_C_FLAGS -m32)
+    set(CMAKE_CXX_FLAGS -m32)
+  endif (TARGET_CPU STREQUAL "x86")
+endif(UNIX)