diff --git a/ext/dba/config.m4 b/ext/dba/config.m4
index dcf01d0d131..1e803192184 100644
--- a/ext/dba/config.m4
+++ b/ext/dba/config.m4
@@ -141,6 +141,10 @@ if test "$PHP_QDBM" != "no"; then
       THIS_PREFIX=$i
       THIS_INCLUDE=$i/include/depot.h
       break
+    elif test -f "$i/include/qdbm/depot.h"; then
+      THIS_PREFIX=$i
+      THIS_INCLUDE=$i/include/qdbm/depot.h
+      break
     fi
   done