diff --git a/src/libclang/preprocessor.cpp b/src/libclang/preprocessor.cpp
index 15494f0..0a36e2a 100644
--- a/src/libclang/preprocessor.cpp
+++ b/src/libclang/preprocessor.cpp
@@ -438,7 +438,7 @@ namespace
         if (starts_with(p, "*/"))
             // empty comment
             p.skip(2u);
-        else if (in_main_file && starts_with(p, "*"))
+        else if (in_main_file && (starts_with(p, "*") || starts_with(p, "!")))
         {
             // doc comment
             p.skip();
diff --git a/test/cpp_preprocessor.cpp b/test/cpp_preprocessor.cpp
index 316906c..3bd499b 100644
--- a/test/cpp_preprocessor.cpp
+++ b/test/cpp_preprocessor.cpp
@@ -216,8 +216,8 @@ class name \
 /// h
 g(h)
 
-/// i
-/// i
+/*! i
+ i */
 using i = int;
 
 /// j