diff --git a/ext/session/session.c b/ext/session/session.c
index 358c8958db6..15018c8d230 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -422,7 +422,7 @@ static void _php_session_save_current_state(PSLS_D)
 	PS(mod)->close(&PS(mod_data));
 }
 
-#define COOKIE_FMT 		"Set-cookie: %s=%s"
+#define COOKIE_FMT 		"Set-Cookie: %s=%s"
 #define COOKIE_EXPIRES	"; expires="
 #define COOKIE_PATH		"; path="
 #define COOKIE_DOMAIN	"; domain="
diff --git a/main/configuration-parser.y b/main/configuration-parser.y
index 4f5d47b7ba9..079edd4bb4b 100644
--- a/main/configuration-parser.y
+++ b/main/configuration-parser.y
@@ -40,7 +40,6 @@
 #include "win32/wfile.h"
 #endif
 
-#undef YYSTYPE
 #define YYSTYPE pval
 
 #define PARSING_MODE_CFG 0