diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index fed12f39d8ce..def69e347b2d 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -76,7 +76,9 @@ endif
 ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
 # Generic build system uses -O2, we want -O3
 # Note: No need to add to cflags-y as that happens anyways
-ARCH_CFLAGS += -O3
+#
+# Disable the false maybe-uninitialized warings gcc spits out at -O3
+ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,)
 endif
 
 # small data is default for elf32 tool-chain. If not usable, disable it