diff --git a/src/unwind/SetGR.c b/src/unwind/SetGR.c
index 056bfc7..e684065 100644
--- a/src/unwind/SetGR.c
+++ b/src/unwind/SetGR.c
@@ -29,6 +29,16 @@ PROTECTED void
 _Unwind_SetGR (struct _Unwind_Context *context, int index,
 	       unsigned long new_value)
 {
+  // quidk'n'dirty workaround for gcc compatibility
+  // gcc uses __builtin_eh_return_data_regno(0) == 0 as index for first parameter (EAX)
+  // and __builtin_eh_return_data_regno(1) == 2 as index for second parameter (EDX)
+  if (index == __builtin_eh_return_data_regno(0)) {
+    index = 0;
+  }
+  if (index == __builtin_eh_return_data_regno(1)) {
+    index = 1;
+  }
+
   unw_set_reg (&context->cursor, index, new_value);
 #ifdef UNW_TARGET_IA64
   if (index >= UNW_IA64_GR && index <= UNW_IA64_GR + 127)