diff --git a/scripts/dts/python-devicetree/src/devicetree/dtlib.py b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
index f5dd165aa8..dc337a671f 100644
--- a/scripts/dts/python-devicetree/src/devicetree/dtlib.py
+++ b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
@@ -1962,9 +1962,9 @@ def _init_tokens():
     # _Token.val is based on the captured string.
     token_spec = {
         _T.INCLUDE: r'(/include/\s*"(?:[^\\"]|\\.)*")',
-        # #line directive
+        # #line directive or GCC linemarker
         _T.LINE:
-        r'^#(?:line)?[ \t]+([0-9]+[ \t]+"(?:[^\\"]|\\.)*")(?:[ \t]+[0-9]+)?',
+        r'^#(?:line)?[ \t]+([0-9]+[ \t]+"(?:[^\\"]|\\.)*")(?:[ \t]+[0-9]+){0,4}',
 
         _T.STRING: r'"((?:[^\\"]|\\.)*)"',
         _T.DTS_V1: r"(/dts-v1/)",