diff --git a/src/filesystem.h b/src/filesystem.h
index fc9a3c9..09d182c 100644
--- a/src/filesystem.h
+++ b/src/filesystem.h
@@ -22,7 +22,7 @@
 #ifndef FILESYSTEM_H
 #define FILESYSTEM_H
 
-#include <SDL_rwops.h>
+#include <SDL_IOStream.h>
 
 struct FileSystemPrivate;
 class SharedFontState;
@@ -52,14 +52,14 @@ public:
 		 * After this function returns, ops becomes invalid, so don't take
 		 * references to it. Instead, copy the structure without closing
 		 * if you need to further read from it later. */
-		virtual bool tryRead(SDL_RWops &ops, const char *ext) = 0;
+		virtual bool tryRead(SDL_IOStream &ops, const char *ext) = 0;
 	};
 
 	void openRead(OpenHandler &handler,
 	              const char *filename);
 
 	/* Circumvents extension supplementing */
-	void openReadRaw(SDL_RWops &ops,
+	void openReadRaw(SDL_IOStream &ops,
 	                 const char *filename,
 	                 bool freeOnClose = false);
 
diff --git a/src/font.cpp b/src/font.cpp
index 36d1210..c40b3cf 100644
--- a/src/font.cpp
+++ b/src/font.cpp
@@ -31,7 +31,7 @@
 #include <string>
 #include <utility>
 
-#include <SDL_ttf.h>
+#include <SDL3_ttf/SDL_ttf.h>
 
 typedef std::pair<std::string, int> FontKey;