diff --git a/runtime/syntax/python2.yaml b/runtime/syntax/python2.yaml
index d6688094..3a993b05 100644
--- a/runtime/syntax/python2.yaml
+++ b/runtime/syntax/python2.yaml
@@ -21,7 +21,7 @@ rules:
       # keywords
     - statement: "\\b(and|as|assert|break|class|continue|def|del|elif|else|except|finally|for|from|global|if|import|in|is|lambda|not|or|pass|print|raise|return|try|while|with|yield)\\b"
       # decorators
-    - brightgreen: "@.*[(]"
+    - preproc: "^\\s*@[^(]*"
       # operators
     - symbol.operator: "([.:;,+*|=!\\%@]|<|>|/|-|&)"
       # parentheses
diff --git a/runtime/syntax/python3.yaml b/runtime/syntax/python3.yaml
index f84d536e..5a060bff 100644
--- a/runtime/syntax/python3.yaml
+++ b/runtime/syntax/python3.yaml
@@ -20,7 +20,7 @@ rules:
       # keywords
     - statement: "\\b(and|as|assert|async|await|break|case|class|continue|def|del|elif|else|except|finally|for|from|global|if|import|in|is|lambda|match|nonlocal|not|or|pass|raise|return|try|while|with|yield)\\b"
       # decorators
-    - brightgreen: "@.*[(]"
+    - preproc: "^\\s*@[^(]*"
       # operators
     - symbol.operator: "([~^.:;,+*|=!\\%@]|<|>|/|-|&)"
       # parentheses