diff --git a/lib_avr32/interrupts.c b/lib_avr32/interrupts.c
index 28df20db01079fe4b84619016f483397b2d6dc04..bbbc490db2361df8e95601a8c721a25ddbbabfc2 100644
--- a/lib_avr32/interrupts.c
+++ b/lib_avr32/interrupts.c
@@ -35,5 +35,12 @@ int disable_interrupts(void)
 	sr = sysreg_read(SR);
 	asm volatile("ssrf	%0" : : "n"(SYSREG_GM_OFFSET));
 
+#ifdef CONFIG_AT32UC3A0xxx
+	/* Two NOPs are required after masking interrupts on the
+	 * AT32UC3A0512ES. See errata 41.4.5.5. */
+	asm("nop");
+	asm("nop");
+#endif
+
 	return !SYSREG_BFEXT(GM, sr);
 }