diff --git a/classes/fsl-kernel-localversion.bbclass b/classes/fsl-kernel-localversion.bbclass
index 9ef0a62f..fae3fe1d 100644
--- a/classes/fsl-kernel-localversion.bbclass
+++ b/classes/fsl-kernel-localversion.bbclass
@@ -13,7 +13,8 @@ SCMVERSION ??= "y"
 LOCALVERSION ??= "+fslc"
 
 # LINUX_VERSION_EXTENSION is used as CONFIG_LOCALVERSION by kernel-yocto class
-LINUX_VERSION_EXTENSION ?= "${LOCALVERSION}"
+LINUX_VERSION_EXTENSION ?= \
+    "${@bb.utils.contains('SCMVERSION', 'y', '', '${LOCALVERSION}', d)}"
 
 do_kernel_localversion[dirs] += "${S} ${B}"
 do_kernel_localversion() {