diff --git a/nspr.spec b/nspr.spec
index 6dcbc16..20cfa65 100644
--- a/nspr.spec
+++ b/nspr.spec
@@ -41,7 +41,7 @@ Header files for doing development with the Netscape Portable Runtime.
                  --libdir=%{_libdir} \
                  --includedir=%{_includedir}/nspr4 \
 %ifarch x86_64 ppc64 ia64 s390x
-                 --enable-64bit
+                 --enable-64bit \
 %endif
                  --enable-optimize="$RPM_OPT_FLAGS" \
                  --disable-debug