diff --git a/sys/amd64/acpica/acpi_wakeup.c b/sys/amd64/acpica/acpi_wakeup.c
index 4f595daf6857..672174c2ee94 100644
--- a/sys/amd64/acpica/acpi_wakeup.c
+++ b/sys/amd64/acpica/acpi_wakeup.c
@@ -93,6 +93,7 @@ acpi_restorecpu:			\n\
 	movl	r_esi,%esi		\n\
 	movl	r_edi,%edi		\n\
 	movl	r_esp,%esp		\n\
+	popl	%eax			\n\
 					\n\
 	pushl	r_efl			\n\
 	popfl				\n\
diff --git a/sys/i386/acpica/acpi_wakeup.c b/sys/i386/acpica/acpi_wakeup.c
index 4f595daf6857..672174c2ee94 100644
--- a/sys/i386/acpica/acpi_wakeup.c
+++ b/sys/i386/acpica/acpi_wakeup.c
@@ -93,6 +93,7 @@ acpi_restorecpu:			\n\
 	movl	r_esi,%esi		\n\
 	movl	r_edi,%edi		\n\
 	movl	r_esp,%esp		\n\
+	popl	%eax			\n\
 					\n\
 	pushl	r_efl			\n\
 	popfl				\n\