diff --git a/src/http/modules/perl/ngx_http_perl_module.c b/src/http/modules/perl/ngx_http_perl_module.c
index f9a9a84..2796319 100644
--- a/src/http/modules/perl/ngx_http_perl_module.c
+++ b/src/http/modules/perl/ngx_http_perl_module.c
@@ -207,6 +207,7 @@
 
     dTHXa(pmcf->perl);
     PERL_SET_CONTEXT(pmcf->perl);
+    PERL_SET_INTERP(pmcf->perl);
 
     if (ctx->next == NULL) {
         plcf = ngx_http_get_module_loc_conf(r, ngx_http_perl_module);
@@ -322,6 +323,7 @@
 
     dTHXa(pmcf->perl);
     PERL_SET_CONTEXT(pmcf->perl);
+    PERL_SET_INTERP(pmcf->perl);
 
     rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, pv->sub, NULL,
                                     &pv->handler, &value);
@@ -387,6 +389,7 @@
 
     dTHXa(pmcf->perl);
     PERL_SET_CONTEXT(pmcf->perl);
+    PERL_SET_INTERP(pmcf->perl);
 
 #if 0
 
@@ -568,6 +571,7 @@
 
     dTHXa(perl);
     PERL_SET_CONTEXT(perl);
+    PERL_SET_INTERP(perl);
 
     perl_construct(perl);
 
@@ -828,6 +832,7 @@
     PerlInterpreter  *perl = data;
 
     PERL_SET_CONTEXT(perl);
+    PERL_SET_INTERP(perl);
 
     (void) perl_destruct(perl);
 
@@ -936,6 +941,7 @@
 
     dTHXa(pmcf->perl);
     PERL_SET_CONTEXT(pmcf->perl);
+    PERL_SET_INTERP(pmcf->perl);
 
     ngx_http_perl_eval_anon_sub(aTHX_ &value[1], &plcf->sub);
 
@@ -1007,6 +1013,7 @@
 
     dTHXa(pmcf->perl);
     PERL_SET_CONTEXT(pmcf->perl);
+    PERL_SET_INTERP(pmcf->perl);
 
     ngx_http_perl_eval_anon_sub(aTHX_ &value[2], &pv->sub);
 
@@ -1039,6 +1046,7 @@
     if (pmcf) {
         dTHXa(pmcf->perl);
         PERL_SET_CONTEXT(pmcf->perl);
+        PERL_SET_INTERP(pmcf->perl);
 
         /* set worker's $$ */