diff --git a/config/common.mk b/config/common.mk
index 33ba366b..b35e3bf4 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -212,6 +212,8 @@ ifdef CM_BUILDTYPE
     ifdef CM_EXTRAVERSION
         # Force build type to EXPERIMENTAL
         CM_BUILDTYPE := EXPERIMENTAL
+        # Remove leading dash from CM_EXTRAVERSION
+        CM_EXTRAVERSION := $(shell echo $(CM_EXTRAVERSION) | sed 's/-//')
         # Add leading dash to CM_EXTRAVERSION
         CM_EXTRAVERSION := -$(CM_EXTRAVERSION)
     endif