diff --git a/src/runtime/c/pgf/data.h b/src/runtime/c/pgf/data.h
index 85925bedb..203758e1b 100644
--- a/src/runtime/c/pgf/data.h
+++ b/src/runtime/c/pgf/data.h
@@ -24,6 +24,7 @@
 #ifdef _MSC_VER
 #include <malloc.h>
 #define alloca _alloca
+#define strdup _strdup
 #endif