diff --git a/clunk_c.cpp b/clunk_c.cpp
index 59b87b6..6270675 100644
--- a/clunk_c.cpp
+++ b/clunk_c.cpp
@@ -443,9 +443,10 @@ CLUNKCAPI void *clunk_buffer_reserve(clunk_buffer *buffer, int more)
 	return buffer->reserve(more);
 }
 
-CLUNKCAPI const char *clunk_buffer_dump(clunk_buffer *buffer)
+CLUNKCAPI void clunk_buffer_dump(clunk_buffer *buffer, char *out, const size_t len)
 {
-	return buffer->dump().c_str();
+	size_t r = buffer->dump().copy(out, len, 0);
+	out[r] = 0;
 }
 
 CLUNKCAPI void clunk_buffer_pop(clunk_buffer *buffer, size_t n)
diff --git a/clunk_c.h b/clunk_c.h
index dc8344b..3178241 100644
--- a/clunk_c.h
+++ b/clunk_c.h
@@ -140,7 +140,7 @@ CLUNKCAPI void clunk_buffer_fill(clunk_buffer *buffer, int b);
 CLUNKCAPI void clunk_buffer_append(clunk_buffer *buffer, const clunk_buffer *other);
 CLUNKCAPI void clunk_buffer_append_data(clunk_buffer *buffer, const void *data, const size_t size);
 CLUNKCAPI void *clunk_buffer_reserve(clunk_buffer *buffer, int more);
-CLUNKCAPI const char *clunk_buffer_dump(clunk_buffer *buffer);
+CLUNKCAPI void clunk_buffer_dump(clunk_buffer *buffer, char *out, const size_t size);
 CLUNKCAPI void clunk_buffer_pop(clunk_buffer *buffer, size_t n);
 CLUNKCAPI void clunk_audio_lock(void);
 CLUNKCAPI void clunk_audio_unlock(void);