diff --git a/regexp.spec b/regexp.spec
index fb9ab84..1c8ea42 100644
--- a/regexp.spec
+++ b/regexp.spec
@@ -50,7 +50,7 @@ find . -name "*.jar" -exec rm -f {} \;
 mkdir lib
 ant -Djakarta-site2.dir=. jar javadocs
 
-gcj-dbtool -n build/%{name}-%{version}.db 128
+gcj-dbtool -n build/%{name}-%{version}.db 64
 aot-compile \
     build/%{full_name}-%{version}.jar \
     build/lib%{name}-%{version}.jar.so \