diff --git a/tests/crasher.c b/tests/crasher.c
index 24c78054..9df57095 100644
--- a/tests/crasher.c
+++ b/tests/crasher.c
@@ -87,6 +87,11 @@ write_maps(char *fname)
 #endif
 
 #ifdef __GNUC__
+#ifndef __clang__
+// Gcc >= 8 became too good at inlining aliase c into b when using -O2 or -O3,
+// so force -O1 in all cases, otherwise a frame will be missing in the tests.
+#pragma GCC optimize "-O1"
+#endif
 int c(int x) NOINLINE ALIAS(b);
 #define compiler_barrier() asm volatile("");
 #else