diff --git a/include/SDL3/SDL_stdinc.h b/include/SDL3/SDL_stdinc.h
index 790f58fa91..444c7d52ab 100644
--- a/include/SDL3/SDL_stdinc.h
+++ b/include/SDL3/SDL_stdinc.h
@@ -602,7 +602,7 @@ extern DECLSPEC float SDLCALL SDL_tanf(float x);
 #define SDL_ICONV_EINVAL    (size_t)-4
 
 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
-typedef struct _SDL_iconv_t *SDL_iconv_t;
+typedef struct SDL_iconv_data_t *SDL_iconv_t;
 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
                                                    const char *fromcode);
 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
diff --git a/src/stdlib/SDL_iconv.c b/src/stdlib/SDL_iconv.c
index 997c0bd70b..a8a132bb9b 100644
--- a/src/stdlib/SDL_iconv.c
+++ b/src/stdlib/SDL_iconv.c
@@ -106,7 +106,7 @@ enum
 #define ENCODING_UCS4NATIVE  ENCODING_UCS4LE
 #endif
 
-struct _SDL_iconv_t
+struct SDL_iconv_data_t
 {
     int src_fmt;
     int dst_fmt;