diff --git a/src/H5FDs3comms.h b/src/H5FDs3comms.h
index 51d9b55822..90c66505df 100644
--- a/src/H5FDs3comms.h
+++ b/src/H5FDs3comms.h
@@ -57,10 +57,10 @@
 #ifdef H5_HAVE_ROS3_VFD
 
 /* Necessary S3 headers */
-#include "curl/curl.h"
-#include "openssl/evp.h"
-#include "openssl/hmac.h"
-#include "openssl/sha.h"
+#include <curl/curl.h>
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
+#include <openssl/sha.h>
 
 /*****************
  * PUBLIC MACROS *