diff --git a/build.sh b/build.sh
index e2d85f90..5ed8845c 100755
--- a/build.sh
+++ b/build.sh
@@ -603,7 +603,7 @@ if [ "$OMR_KERNEL" = "5.15" ]; then
 	find target/linux/ipq806x -type f -name Makefile -exec sed -i 's%KERNEL_PATCHVER:=5.10%KERNEL_PATCHVER:=5.15%g' {} \;
 	echo "Done"
 	echo "Set to kernel 5.15 for ipq40xx"
-	find target/linux/ipq40xx -type f -name Makefile -exec sed -i 's%KERNEL_PATCHVER:=5.10%KERNEL_PATCHVER:=5.15%g' {} \;
+	find target/linux/ipq40xx -type f -name Makefile -exec sed -i 's%KERNEL_PATCHVER:=5.4%KERNEL_PATCHVER:=5.15%g' {} \;
 	echo "Done"
 	#rm -rf target/linux/generic/files/drivers/net/phy/b53
 	rm -f target/linux/bcm27xx/modules/sound.mk