diff --git a/CMake/CheckAtomic.cmake b/CMake/CheckAtomic.cmake
index 2e62c5bdf0..145518d4a3 100644
--- a/CMake/CheckAtomic.cmake
+++ b/CMake/CheckAtomic.cmake
@@ -72,9 +72,9 @@ if(NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB)
     list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic")
     if (NOT CMAKE_CROSSCOMPILING)
       check_working_cxx_atomics64(HAVE_CXX_ATOMICS64_WITH_LIB)
-    endif()
-    if (NOT HAVE_CXX_ATOMICS64_WITH_LIB)
-      message(FATAL_ERROR "Host compiler must support std::atomic!")
+      if (NOT HAVE_CXX_ATOMICS64_WITH_LIB)
+        message(FATAL_ERROR "Host compiler must support std::atomic!")
+      endif()
     endif()
   else()
     message(FATAL_ERROR "Host compiler appears to require libatomic, but cannot find it.")