diff --git a/tccgen.c b/tccgen.c
index 2ee91a76..b7e0fcfc 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -6783,13 +6783,14 @@ static int decl_designator(CType *type, Section *sec, unsigned long c,
             c += index * elem_size;
             nb_elems = index_last - index + 1;
         } else {
-            int cumofs = 0;
+            int cumofs;
             next();
             l = tok;
         struct_field:
             next();
             if ((type->t & VT_BTYPE) != VT_STRUCT)
                 expect("struct/union type");
+            cumofs = 0;
 	    f = find_field(type, l, &cumofs);
             if (!f)
                 expect("field");
diff --git a/tests/tests2/90_struct-init.c b/tests/tests2/90_struct-init.c
index 48401c1d..ade7fad7 100644
--- a/tests/tests2/90_struct-init.c
+++ b/tests/tests2/90_struct-init.c
@@ -175,6 +175,12 @@ void foo (struct W *w, struct pkthdr *phdr_)
   struct T lt2 = { { [1 ... 5] = 9, [6 ... 10] = elt, [4 ... 7] = elt+1 }, 1 };
   struct SSU lssu1 = { 5, 3 };
   struct SSU lssu2 = { .y = 5, .x = 3 };
+  /* designated initializers in GNU form */
+#if defined(__GNUC__) || defined(__TINYC__)
+  struct S ls4 = {a: 1, b: 2, c: {3, 4}};
+#else
+  struct S ls4 = {.a = 1, .b = 2, .c = {3, 4}};
+#endif
   print(ls);
   print(ls2);
   print(lt);
@@ -194,6 +200,7 @@ void foo (struct W *w, struct pkthdr *phdr_)
   print(lssu1);
   print(lssu2);
   print(flow);
+  print(ls4);
 }
 #endif
 
diff --git a/tests/tests2/90_struct-init.expect b/tests/tests2/90_struct-init.expect
index 46248afa..c55cb476 100644
--- a/tests/tests2/90_struct-init.expect
+++ b/tests/tests2/90_struct-init.expect
@@ -39,6 +39,7 @@ lt2: 0 9 9 9 43 43 43 43 42 42 42 0 0 0 0 0 1
 lssu1: 5 0 0 0 3 0 0 0
 lssu2: 5 0 0 0 3 0 0 0
 flow: 9 8 7 6 0 0 0 0 0 0 0 0 0 0 0 0 6 5 4 3 0 0 0 0 0 0 0 0 0 0 0 0
+ls4: 1 2 3 4
 one
 two
 three