diff --git a/cryptest.nmake b/cryptest.nmake
index 69d28c41..480ea6ef 100644
--- a/cryptest.nmake
+++ b/cryptest.nmake
@@ -110,7 +110,7 @@ LDLIBS = $(LDLIBS) ws2_32.lib kernel32.lib
 !ENDIF
 
 # May need $(VCINSTALLDIR)\bin\amd64\ml64.exe
-!IF "$(PLATFORM)" == "x64" || "$(PLATFORM)" == "X64"
+!IF "$(PLATFORM)" == "x64" || "$(PLATFORM)" == "X64" || "$(PLATFORM)" == "amd64"
 # CXXFLAGS = $(CXXFLAGS) /arch:AVX2
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_APP