diff --git a/addons/misra.py b/addons/misra.py
index 48dcf2d13..25041d772 100755
--- a/addons/misra.py
+++ b/addons/misra.py
@@ -1842,7 +1842,7 @@ class MisraChecker:
 
     def misra_8_1(self, cfg):
         for token in cfg.tokenlist:
-            if token.isImplicitInt:
+            if token.isImplicitInt and not token.isUnsigned and not token.isSigned:
                 self.reportError(token, 8, 1)
 
     def misra_8_2(self, data, rawTokens):
diff --git a/addons/test/misra/misra-test.c b/addons/test/misra/misra-test.c
index 1b6389ecd..217417742 100644
--- a/addons/test/misra/misra-test.c
+++ b/addons/test/misra/misra-test.c
@@ -45,7 +45,7 @@
 typedef struct {
   union { // 19.2
     struct {
-      unsigned a : 2; // 8.1
+      unsigned a : 2;
       unsigned : 14;
     };
     uint16_t value;