diff --git a/src/hb-ot-shape-complex-arabic-win1256.hh b/src/hb-ot-shape-complex-arabic-win1256.hh
index 8edd3ba80..e70c48f42 100644
--- a/src/hb-ot-shape-complex-arabic-win1256.hh
+++ b/src/hb-ot-shape-complex-arabic-win1256.hh
@@ -142,7 +142,7 @@
 		OT_UARRAY(Name##Substitute, OT_LIST(ToGlyphs)) \
 	) \
 	OT_COVERAGE1(Name##Coverage, OT_LIST(FromGlyphs)) \
-	/* ASSERT_STATIC_EXPR len(FromGlyphs) == len(ToGlyphs) */
+	/* ASSERT_STATIC_EXPR_ZERO (len(FromGlyphs) == len(ToGlyphs)) */
 
 #define OT_SUBLOOKUP_LIGATURE_SUBST_FORMAT1(Name, FirstGlyphs, LigatureSetOffsets) \
 	OT_SUBLOOKUP(Name, 1, \
@@ -151,7 +151,7 @@
 		OT_UARRAY(Name##LigatureSetOffsetsArray, OT_LIST(LigatureSetOffsets)) \
 	) \
 	OT_COVERAGE1(Name##Coverage, OT_LIST(FirstGlyphs)) \
-	/* ASSERT_STATIC_EXPR len(FirstGlyphs) == len(LigatureSetOffsets) */
+	/* ASSERT_STATIC_EXPR_ZERO (len(FirstGlyphs) == len(LigatureSetOffsets)) */
 
 #define OT_LIGATURE_SET(Name, LigatureSetOffsets) \
 	OT_UARRAY(Name, OT_LIST(LigatureSetOffsets))
diff --git a/src/hb-ot-shape-complex-indic-private.hh b/src/hb-ot-shape-complex-indic-private.hh
index d8dfc6507..559ebe498 100644
--- a/src/hb-ot-shape-complex-indic-private.hh
+++ b/src/hb-ot-shape-complex-indic-private.hh
@@ -161,8 +161,6 @@ enum indic_matra_category_t {
   INDIC_MATRA_CATEGORY_VISUAL_ORDER_LEFT		= POS_PRE_M
 };
 
-/* Note: We use ASSERT_STATIC_EXPR_ZERO() instead of ASSERT_STATIC_EXPR() and the comma operation
- * because gcc fails to optimize the latter and fills the table in at runtime. */
 #define INDIC_COMBINE_CATEGORIES(S,M) \
   (ASSERT_STATIC_EXPR_ZERO (M == INDIC_MATRA_CATEGORY_NOT_APPLICABLE || \
 			    ( \
diff --git a/src/hb-private.hh b/src/hb-private.hh
index 0ec0fe72c..475f72fb9 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -193,7 +193,6 @@ static inline unsigned int ARRAY_LENGTH (const Type (&)[n]) { return n; }
 #define _ASSERT_STATIC0(_line, _cond)	_ASSERT_STATIC1 (_line, (_cond))
 #define ASSERT_STATIC(_cond)		_ASSERT_STATIC0 (__LINE__, (_cond))
 
-#define ASSERT_STATIC_EXPR(_cond)((void) sizeof (char[(_cond) ? 1 : -1]))
 #define ASSERT_STATIC_EXPR_ZERO(_cond) (0 * sizeof (char[(_cond) ? 1 : -1]))
 
 #define _PASTE1(a,b) a##b