diff --git a/sim/configure b/sim/configure
index 3da6fce3580..3cd19e0648a 100755
--- a/sim/configure
+++ b/sim/configure
@@ -15317,7 +15317,7 @@ yes|no) ;;
 esac
 fi
 
-if test "x${enable_sim_frv_trapdump}" != xno; then
+if test "x${enable_sim_frv_trapdump}" = xyes; then
   SIM_FRV_TRAPDUMP_FLAGS="-DTRAPDUMP=1"
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
diff --git a/sim/frv/acinclude.m4 b/sim/frv/acinclude.m4
index 797bcd6c60f..75c27a89d04 100644
--- a/sim/frv/acinclude.m4
+++ b/sim/frv/acinclude.m4
@@ -24,7 +24,7 @@ AC_ARG_ENABLE(sim-frv-trapdump,
 yes|no) ;;
 *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-trapdump");;
 esac])
-if test "x${enable_sim_frv_trapdump}" != xno; then
+if test "x${enable_sim_frv_trapdump}" = xyes; then
   SIM_FRV_TRAPDUMP_FLAGS="-DTRAPDUMP=1"
   AC_MSG_RESULT([yes])
 else