diff --git a/gdb/testsuite/gdb.base/morestack.exp b/gdb/testsuite/gdb.base/morestack.exp
index b4d22187390..cc81522a51e 100644
--- a/gdb/testsuite/gdb.base/morestack.exp
+++ b/gdb/testsuite/gdb.base/morestack.exp
@@ -15,7 +15,7 @@
 
 require is_c_compiler_gcc
 
-require {expr [have_compile_flag -fsplit-stack]}
+require {have_compile_flag -fsplit-stack}
 
 standard_testfile