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-rw-r--r--guix/build/syscalls.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index f910ebd152..7e5245fcc6 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -295,7 +295,7 @@ to interfaces that are currently up."
 
 (define %interface-line
   ;; Regexp matching an interface line in Linux's /proc/net/dev.
-  (make-regexp "^[[:blank:]]*([[:alnum:]]+): .*$"))
+  (make-regexp "^[[:blank:]]*([[:alnum:]]+):.*$"))
 
 (define (all-network-interfaces)
   "Return all the registered network interfaces, including those that are not