diff --git a/source/matplot/util/common.cpp b/source/matplot/util/common.cpp
index 58eb1ea6..557a3e5b 100644
--- a/source/matplot/util/common.cpp
+++ b/source/matplot/util/common.cpp
@@ -51,7 +51,7 @@ namespace matplot {
     }
 
     std::string run_and_get_output(const std::string &cmd) {
-        std::unique_ptr<FILE, decltype(&PCLOSE)> pipe(POPEN(cmd.c_str(), "r"),
+        std::unique_ptr<FILE, int (*)(FILE *)> pipe(POPEN(cmd.c_str(), "r"),
                                                       PCLOSE);
         if (!pipe) {
             throw std::runtime_error("popen() failed!");