diff --git a/legacy/gcc/gcc/c-lex.c b/legacy/gcc/gcc/c-lex.c
index e9888c30eb..2f058c2d31 100644
--- a/legacy/gcc/gcc/c-lex.c
+++ b/legacy/gcc/gcc/c-lex.c
@@ -2174,6 +2174,7 @@ yylex ()
 			default:
 			  warning ("Skipping invalid UTF-8 byte in wide char "
 			    "string literal");
+			  c = GETC ();
 			  continue;
 		      }
 		    for (i = 1; i < len; ++i)
diff --git a/legacy/gcc/gcc/cp/lex.c b/legacy/gcc/gcc/cp/lex.c
index 6d2ef4ea68..d37d9a4264 100644
--- a/legacy/gcc/gcc/cp/lex.c
+++ b/legacy/gcc/gcc/cp/lex.c
@@ -4290,6 +4290,7 @@ real_yylex ()
 			default:
 			  warning ("Skipping invalid UTF-8 byte in wide char "
 			    "string literal");
+			  c = getch ();
 			  continue;
 		      }
 		    for (i = 1; i < len; ++i)