diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index 3ab92403d4168..64d36c5e2d57d 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -591,10 +591,14 @@ set(aarch64_SOURCES
   ${GENERIC_TF_SOURCES}
   ${GENERIC_SOURCES}
   cpu_model/aarch64.c
-  aarch64/emupac.cpp
   aarch64/fp_mode.c
 )
 
+# Append sources specific to AArch64 targets that aren't supported by MSVC.
+if(NOT MSVC)
+  list(APPEND aarch64_SOURCES aarch64/emupac.cpp)
+endif()
+
 set(COMPILER_RT_AARCH64_FMV_USES_GLOBAL_CONSTRUCTOR NOT(FUCHSIA OR APPLE))
 
 if (COMPILER_RT_HAS_AARCH64_SME)