diff --git a/src/main/java/com/teamscale/upload/xcode/XcodeVersion.java b/src/main/java/com/teamscale/upload/xcode/XcodeVersion.java
index b1af384..e04566f 100644
--- a/src/main/java/com/teamscale/upload/xcode/XcodeVersion.java
+++ b/src/main/java/com/teamscale/upload/xcode/XcodeVersion.java
@@ -30,7 +30,8 @@ public static XcodeVersion determine() {
 		ProcessUtils.ProcessResult result = ProcessUtils.run("xcodebuild", "-version");
 		if (!result.wasSuccessful()) {
 			LogUtils.warn("Could not determine installed Xcode version. Assuming latest Xcode version is installed.");
-			LogUtils.debug("Error whilst running 'xcodebuild -version' command: ", result.exception);
+			LogUtils.debug("Error whilst running 'xcodebuild -version' command: " + result.errorOutput,
+					result.exception);
 			return latestVersion();
 		}