diff --git a/boehm-gc/configure b/boehm-gc/configure
index 91dfc8b418a..44293c433c2 100755
--- a/boehm-gc/configure
+++ b/boehm-gc/configure
@@ -2394,7 +2394,6 @@ case "$host" in
  alpha*-*-*)
     machdep="alpha_mach_dep.lo"
     ;;
-    ;;
  mipstx39-*-elf*)
     machdep="mips_ultrix_mach_dep.lo"
     cat >> confdefs.h <<\EOF
diff --git a/boehm-gc/configure.in b/boehm-gc/configure.in
index 45466473534..e2777cca671 100644
--- a/boehm-gc/configure.in
+++ b/boehm-gc/configure.in
@@ -137,7 +137,6 @@ case "$host" in
  alpha*-*-*)
     machdep="alpha_mach_dep.lo"
     ;;
-    ;;
  mipstx39-*-elf*)
     machdep="mips_ultrix_mach_dep.lo"
     AC_DEFINE(STACKBASE, __stackbase)