diff --git a/CI/before_script.msvc.sh b/CI/before_script.msvc.sh
index c328dd882..55dda74af 100644
--- a/CI/before_script.msvc.sh
+++ b/CI/before_script.msvc.sh
@@ -194,7 +194,11 @@ download() {
 }
 
 real_pwd() {
-	pwd | sed "s,/\(.\),\1:,"
+	if type cygpath >/dev/null 2>&1; then
+		cygpath -am "$PWD"
+	else
+		pwd # not git bash, Cygwin or the like
+	fi
 }
 
 CMAKE_OPTS=""