diff --git a/src/engine/shared/console.cpp b/src/engine/shared/console.cpp
index 992a0bc6d..d0e0f39cb 100644
--- a/src/engine/shared/console.cpp
+++ b/src/engine/shared/console.cpp
@@ -548,7 +548,9 @@ void CConsole::ExecuteLineStroked(int Stroke, const char *pStr, int ClientID, bo
 		}
 		else if(Stroke)
 		{
-			if(!m_pfnUnknownCommandCallback(Result.m_pCommand, m_pUnknownCommandUserdata))
+			// Pass the original string to the unknown command callback instead of the parsed command, as the latter
+			// ends at the first whitespace, which breaks for unknown commands (filenames) containing spaces.
+			if(!m_pfnUnknownCommandCallback(pStr, m_pUnknownCommandUserdata))
 			{
 				char aBuf[256];
 				str_format(aBuf, sizeof(aBuf), "No such command: %s.", Result.m_pCommand);