diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 86cf30b471..80afd125d9 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -184,6 +184,7 @@ (define-public (system->defconfig system)
 defconfig.  Return the appropriate make target if applicable, otherwise return
 \"defconfig\"."
   (cond ((string-prefix? "powerpc-" system) "pmac32_defconfig")
+        ((string-prefix? "powerpc64-" system) "ppc64_defconfig")
         ((string-prefix? "powerpc64le-" system) "ppc64_defconfig")
         (else "defconfig")))