diff --git a/LongestCommonPrefix.h b/LongestCommonPrefix.h
index 5490f97..f5c8b9d 100644
--- a/LongestCommonPrefix.h
+++ b/LongestCommonPrefix.h
@@ -129,7 +129,7 @@ longestCommonPrefix(const uint8_t *ap, const uint8_t *bp, int cl) {
   }
 
   int i = 0;
-  int end;
+  int end; // GCOVR_EXCL_LINE
 
   // kStride * kUnrollCount at a time
   end = cl & ~(kStride * kUnrollFactor - 1);
@@ -182,4 +182,4 @@ longestCommonPrefix(const uint8_t *ap, const uint8_t *bp, int cl) {
   }
 
   return i;
-}
\ No newline at end of file
+}