diff --git a/win32/build/confutils.js b/win32/build/confutils.js
index 4bd46ad9760..780d9127cac 100644
--- a/win32/build/confutils.js
+++ b/win32/build/confutils.js
@@ -3067,7 +3067,9 @@ function toolset_setup_common_cflags()
 			ADD_FLAG('CFLAGS', ' /RTC1 ');
 		} else {
 			if (VCVERS >= 1900) {
-				ADD_FLAG('CFLAGS', "/guard:cf");
+				if (PHP_SECURITY_FLAGS == "yes") {
+					ADD_FLAG('CFLAGS', "/guard:cf");
+				}
 			}
 			if (VCVERS >= 1800) {
 				if (PHP_PGI != "yes" && PHP_PGO != "yes") {
@@ -3108,7 +3110,9 @@ function toolset_setup_common_ldlags()
 
 	if (VS_TOOLSET) {
 		if (VCVERS >= 1900) {
-			ADD_FLAG('LDFLAGS', "/GUARD:CF");
+			if (PHP_SECURITY_FLAGS == "yes") {
+				ADD_FLAG('LDFLAGS', "/GUARD:CF");
+			}
 		}
 	}
 }