diff --git a/mozilla/configure b/mozilla/configure
index c7c2863e660..62cf9fb22aa 100755
--- a/mozilla/configure
+++ b/mozilla/configure
@@ -4017,7 +4017,7 @@ cat > conftest.$ac_ext <<EOF
 
 int main() {
 
-#if defined(__DECCXX) && (__DECCXX_VER<60290024)
+#if defined(__DECCXX) && (__DECCXX_VER<60190029)
 #error "Compiler is too old."
 #endif 
 ; return 0; }
diff --git a/mozilla/configure.in b/mozilla/configure.in
index 9379b211fcb..4a990df46f1 100644
--- a/mozilla/configure.in
+++ b/mozilla/configure.in
@@ -486,7 +486,7 @@ AC_LANG_SAVE
 AC_LANG_CPLUSPLUS
 AC_MSG_CHECKING(for old DEC C++ compiler)
 AC_TRY_COMPILE([], [
-#if defined(__DECCXX) && (__DECCXX_VER<60290024)
+#if defined(__DECCXX) && (__DECCXX_VER<60190029)
 #error "Compiler is too old."
 #endif ],
 [AC_MSG_RESULT([no])],