diff --git a/src/Language/SystemVerilog/Parser/Preprocess.hs b/src/Language/SystemVerilog/Parser/Preprocess.hs
index 6f607dc..1b2de99 100644
--- a/src/Language/SystemVerilog/Parser/Preprocess.hs
+++ b/src/Language/SystemVerilog/Parser/Preprocess.hs
@@ -546,6 +546,10 @@ preprocessInput = do
         '/' : '*' : _ -> removeThrough "*/"
         '`' : '"' : _ -> handleBacktickString
         '"' : _ -> handleString
+        '/' : '`' : '`' : '*' : _ ->
+            if null macroStack
+                then consume
+                else removeThrough "*``/"
         '`' : '`' : _ -> do
             if null macroStack
                 then do
diff --git a/test/error/stray_escaped_vendor_comment.sv b/test/error/stray_escaped_vendor_comment.sv
new file mode 100644
index 0000000..014d755
--- /dev/null
+++ b/test/error/stray_escaped_vendor_comment.sv
@@ -0,0 +1,4 @@
+// pattern: Parse error
+module top;
+    /``* some awful garbage *``/
+endmodule
diff --git a/test/lex/macro_vendor_comment.sv b/test/lex/macro_vendor_comment.sv
new file mode 100644
index 0000000..9e77d7e
--- /dev/null
+++ b/test/lex/macro_vendor_comment.sv
@@ -0,0 +1,4 @@
+`define YUCK /``* some awful garbage *``/
+module top;
+    `YUCK
+endmodule