diff --git a/misc/fuel/fuel-connection.el b/misc/fuel/fuel-connection.el
index ca9a0efad3..824f21d62b 100644
--- a/misc/fuel/fuel-connection.el
+++ b/misc/fuel/fuel-connection.el
@@ -128,7 +128,7 @@
     (fuel-con--setup-comint)
     (fuel-con--establish-connection conn buffer)))
 
-(defconst fuel-con--prompt-regex "IN: [^ ]+\\( auto-use\\)? ")
+(defconst fuel-con--prompt-regex "^IN: [^ ]+\\( auto-use\\)? ")
 (defconst fuel-con--eot-marker "<~FUEL~>")
 (defconst fuel-con--init-stanza "USE: fuel fuel-retort")