diff --git a/sys/i386/apm/apm.c b/sys/i386/apm/apm.c
index 85d8eed43d2..620da582558 100644
--- a/sys/i386/apm/apm.c
+++ b/sys/i386/apm/apm.c
@@ -581,6 +581,9 @@ apm_suspend(int state)
 {
 	struct apm_softc *sc = &apm_softc;
 
+	if (!sc->initialized)
+		return;
+
 	switch (state) {
 	case PMST_SUSPEND:
 		if (sc->suspends)
diff --git a/sys/i386/bios/apm.c b/sys/i386/bios/apm.c
index 85d8eed43d2..620da582558 100644
--- a/sys/i386/bios/apm.c
+++ b/sys/i386/bios/apm.c
@@ -581,6 +581,9 @@ apm_suspend(int state)
 {
 	struct apm_softc *sc = &apm_softc;
 
+	if (!sc->initialized)
+		return;
+
 	switch (state) {
 	case PMST_SUSPEND:
 		if (sc->suspends)