diff --git a/src/codegen.cpp b/src/codegen.cpp
index 2d7b5bb1d4ca133f60147163416b0e17c4be6d3b..623f946307bfaa083d07dc7ac0b6df73871435d4 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -337,7 +337,12 @@ static LLVMCallConv get_llvm_cc(CodeGen *g, CallingConvention cc) {
             if (g->zig_target.arch.arch == ZigLLVM_x86 ||
                 g->zig_target.arch.arch == ZigLLVM_x86_64)
             {
-                return LLVMColdCallConv;
+                // cold calling convention is not supported on windows
+                if (g->zig_target.os == ZigLLVM_Win32) {
+                    return LLVMCCallConv;
+                } else {
+                    return LLVMColdCallConv;
+                }
             } else {
                 return LLVMCCallConv;
             }