1 files changed, 1 insertions, 2 deletions
diff --git a/pb.h b/pb.h
index 61696a4f..4983d069 100644
--- a/pb.h
+++ b/pb.h
@@ -34,8 +34,7 @@
 #endif
 
 #if PB_MAX_REQUIRED_FIELDS < 64
-#warning You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64). \
-         The automatic checks against too low value will not be active.
+#error You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64).
 #endif
 
 /* List of possible field types. These are used in the autogenerated code.