diff --git a/cppcheck.sh b/cppcheck.sh
index e55f20164..aeb2115a8 100755
--- a/cppcheck.sh
+++ b/cppcheck.sh
@@ -61,7 +61,7 @@ CHECK="\
 -D BACKEND_EXPORT \
 -D PRId64 \
 -D DECLARE_INITRIG_BACKEND \
--D DECLARE_INITRROT_BACKEND \
+-D DECLARE_INITROT_BACKEND \
 -D DECLARE_INITAMP_BACKEND \
 -D B230400
 -U RIG_LEVEL_LINEOUT \