1 files changed, 9 insertions, 6 deletions
diff --git a/src/core/support/env_win32.c b/src/core/support/env_win32.c
index 177cc36a30..9b4cd698ad 100644
--- a/src/core/support/env_win32.c
+++ b/src/core/support/env_win32.c
@@ -36,6 +36,7 @@
 #ifdef GPR_WIN32
 
 #include "src/core/support/env.h"
+#include "src/core/support/string.h"
 
 #include <stdlib.h>
 
@@ -43,14 +44,16 @@
 #include <grpc/support/log.h>
 
 char *gpr_getenv(const char *name) {
-  size_t required_size;
+  size_t size;
   char *result = NULL;
+  char *duplicated;
+  errno_t err;
 
-  getenv_s(&required_size, NULL, 0, name);
-  if (required_size == 0) return NULL;
-  result = gpr_malloc(required_size);
-  getenv_s(&required_size, result, required_size, name);
-  return result;
+  err = _dupenv_s(&result, &size, name);
+  if (err) return NULL;
+  duplicated = gpr_strdup(result);
+  free(result);
+  return duplicated;
 }
 
 void gpr_setenv(const char *name, const char *value) {