diff --git a/configure.in b/configure.in
index 8e2d138e..5685766d 100644
--- a/configure.in
+++ b/configure.in
@@ -61,7 +61,7 @@ AC_CHECK_TYPES([sighandler_t], [], [],
 ])
 
 AC_CHECK_DECLS([PTRACE_POKEUSER, PTRACE_POKEDATA, PTRACE_CONT,
-PTRACE_TRACEME, PTRACE_CONT, PTRACE_SIGNLESTEP,
+PTRACE_TRACEME, PTRACE_CONT, PTRACE_SINGLESTEP,
 PTRACE_SYSCALL, PT_IO, PT_GETREGS,
 PT_GETFPREGS, PT_CONTINUE, PT_TRACE_ME,
 PT_STEP, PT_SYSCALL], [], [],