diff --git a/src/utils/trimEndChar.ts b/src/utils/trimEndChar.ts
new file mode 100644
index 0000000..8e708f0
--- /dev/null
+++ b/src/utils/trimEndChar.ts
@@ -0,0 +1,12 @@
+export function trimEndChar(str: string, char: string): string {
+  if (!char || char.length !== 1) {
+    throw new Error("trimEndChar expects a single character.")
+  }
+
+  let end = str.length
+  while (end > 0 && str[end - 1] === char) {
+    end--
+  }
+
+  return str.slice(0, end)
+}
diff --git a/src/wire/parseRefsAdResponse.ts b/src/wire/parseRefsAdResponse.ts
index dff9a0b..55248e7 100644
--- a/src/wire/parseRefsAdResponse.ts
+++ b/src/wire/parseRefsAdResponse.ts
@@ -1,7 +1,8 @@
 import { Buffer } from 'buffer'
 import { EmptyServerResponseError } from '../errors/EmptyServerResponseError'
-import { ParseError } from '../errors/ParseError'
 import { GitPktLine } from '../models/GitPktLine'
+import { ParseError } from '../errors/ParseError'
+import { trimEndChar } from '../utils/trimEndChar'
 
 /** @internal */
 export type RemoteHTTPV1 = {
@@ -89,7 +90,7 @@ export async function parseRefsAdResponse(
 }
 
 function splitAndAssert(line: string, sep: string, expected: string) {
-  const split = line.trim().split(sep)
+  const split = trimEndChar(line.trim(), '\x00').split(sep)
   if (split.length !== 2) {
     throw new ParseError(expected, line)
   }
diff --git a/tests/utils-trimEndChar.test.ts b/tests/utils-trimEndChar.test.ts
new file mode 100644
index 0000000..f339fe3
Binary files /dev/null and b/tests/utils-trimEndChar.test.ts differ