diff --git a/gcc/testsuite/gcc.dg/torture/pr116488.c b/gcc/testsuite/gcc.dg/torture/pr116488.c
index 9ead1298eb1..90457bb9315 100644
--- a/gcc/testsuite/gcc.dg/torture/pr116488.c
+++ b/gcc/testsuite/gcc.dg/torture/pr116488.c
@@ -1,7 +1,7 @@
 /* { dg-do run } */
 /* { dg-additional-options "-fno-forward-propagate" } */
 int a, b;
-char c, e;
+signed char c, e;
 unsigned char d;
 __attribute__ ((noinline,noclone,noipa))
 void f(int g, short h) {
diff --git a/gcc/testsuite/gcc.dg/torture/pr117226.c b/gcc/testsuite/gcc.dg/torture/pr117226.c
index 2bb35a12b2b..ac71a81e81f 100644
--- a/gcc/testsuite/gcc.dg/torture/pr117226.c
+++ b/gcc/testsuite/gcc.dg/torture/pr117226.c
@@ -5,7 +5,7 @@
 int a = 128, b, d;
 long e = -2, c;
 int main() {
-  char f = a;
+  signed char f = a;
   int g = f;
   c = (g < 0) - e;
   unsigned char h = g;