diff --git a/cmake/system_check.cmake b/cmake/system_check.cmake
index add2c70b3..6b602c1b0 100644
--- a/cmake/system_check.cmake
+++ b/cmake/system_check.cmake
@@ -10,7 +10,7 @@ if (${HOST_OS} STREQUAL "WINDOWS")
   set(HOST_OS WINNT)
 endif ()
 
-if (${HOST_OS} STREQUAL "Linux")
+if (${HOST_OS} STREQUAL "LINUX")
 # check if we're building natively on Android (TERMUX)
     EXECUTE_PROCESS( COMMAND uname -o COMMAND tr -d '\n' OUTPUT_VARIABLE OPERATING_SYSTEM)
       if(${OPERATING_SYSTEM} MATCHES "Android")