diff --git a/Util/BacktraceException.hpp b/Util/BacktraceException.hpp
index a0ed2d017..313efb834 100644
--- a/Util/BacktraceException.hpp
+++ b/Util/BacktraceException.hpp
@@ -18,6 +18,14 @@ namespace Util {
  * deferred until `what()` is called on the handled exception.
  */
 
+struct PcloseDeleter {
+    void operator()(FILE* fp) const {
+        if (fp) {
+            pclose(fp);
+        }
+    }
+};
+
 template <typename T>
 class BacktraceException : public T {
 public:
@@ -76,7 +84,7 @@ class BacktraceException : public T {
 
 		std::array<char, 128> buffer;
 		std::string result;
-		std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
+		std::unique_ptr<FILE, PcloseDeleter> pipe(popen(cmd, "r"));
 
 		if (!pipe) {
 			return " -- error: unable to open addr2line";