diff --git a/src/hb-fallback-shape.cc b/src/hb-fallback-shape.cc
index ac6d4b00f..e5a80ee32 100644
--- a/src/hb-fallback-shape.cc
+++ b/src/hb-fallback-shape.cc
@@ -125,7 +125,7 @@ _hb_fallback_shape (hb_shape_plan_t    *shape_plan HB_UNUSED,
       pos[i].y_advance = 0;
       continue;
     }
-    font->get_nominal_glyph (info[i].codepoint, &info[i].codepoint);
+    (void) font->get_nominal_glyph (info[i].codepoint, &info[i].codepoint);
     font->get_glyph_advance_for_direction (info[i].codepoint,
 					   direction,
 					   &pos[i].x_advance,
diff --git a/src/hb-ot-shape-normalize.cc b/src/hb-ot-shape-normalize.cc
index 107617e81..94a3d7d27 100644
--- a/src/hb-ot-shape-normalize.cc
+++ b/src/hb-ot-shape-normalize.cc
@@ -91,7 +91,7 @@ compose_unicode (const hb_ot_shape_normalize_context_t *c,
 static inline void
 set_glyph (hb_glyph_info_t &info, hb_font_t *font)
 {
-  font->get_nominal_glyph (info.codepoint, &info.glyph_index());
+  (void) font->get_nominal_glyph (info.codepoint, &info.glyph_index());
 }
 
 static inline void