diff --git a/diff.py b/diff.py
index 3440774..ffc2133 100755
--- a/diff.py
+++ b/diff.py
@@ -2094,7 +2094,7 @@ def process_reloc(self, row: str, prev: str) -> Tuple[str, Optional[str]]:
         # Example %edi,0
         # Example movb $0x0,0x0
         if not addr_imm:
-            addr_imm = re.search(r"(?:0x)?(?<![1-9])0$", args)
+            addr_imm = re.search(r"\b(?:0x)?(?<![1-9])0$", args)
 
         # Example movb $0x0,0x0(%si)
         if not addr_imm: