diff --git a/libtcc.c b/libtcc.c
index c58f454..dfdf85b 100644
--- a/libtcc.c
+++ b/libtcc.c
@@ -1273,6 +1273,7 @@ static int tcc_add_library_internal(TCCState *s, const char *fmt,
     return -1;
 }
 
+#ifndef TCC_TARGET_PE
 /* find and load a dll. Return non zero if not found */
 /* XXX: add '-rpath' option support ? */
 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
@@ -1280,6 +1281,7 @@ ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
     return tcc_add_library_internal(s, "%s/%s", filename, flags,
         s->library_paths, s->nb_library_paths);
 }
+#endif
 
 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename)
 {
diff --git a/tcc.h b/tcc.h
index 314045b..7d685ab 100644
--- a/tcc.h
+++ b/tcc.h
@@ -1118,7 +1118,11 @@ ST_FUNC void tcc_close(void);
 
 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype);
 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
+
+#ifndef TCC_TARGET_PE
 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
+#endif
+
 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);