diff --git a/engine/vm.c b/engine/vm.c
index 95a9d2d..4007476 100644
--- a/engine/vm.c
+++ b/engine/vm.c
@@ -7691,16 +7691,14 @@ static int VmObConsumer(const void *pData, unsigned int nDataLen, void *pUserDat
 		return PH7_OK;
 	}
 	PH7_MemObjInit(pVm, &sResult);
-	if(ph7_value_is_callable(&pEntry->sCallback) && pVm->nObDepth < 15) {
+	if(ph7_value_is_callable(&pEntry->sCallback)) {
 		ph7_value sArg, *apArg[2];
 		/* Fill the first argument */
 		PH7_MemObjInitFromString(pVm, &sArg, 0);
 		PH7_MemObjStringAppend(&sArg, (const char *)pData, nDataLen);
 		apArg[0] = &sArg;
 		/* Call the 'filter' callback */
-		pVm->nObDepth++;
 		PH7_VmCallUserFunction(pVm, &pEntry->sCallback, 1, apArg, &sResult);
-		pVm->nObDepth--;
 		if(sResult.iFlags & MEMOBJ_STRING) {
 			/* Extract the function result */
 			pData = SyBlobData(&sResult.sBlob);
diff --git a/include/ph7int.h b/include/ph7int.h
index 1f9a912..9d6ea66 100644
--- a/include/ph7int.h
+++ b/include/ph7int.h
@@ -1229,7 +1229,6 @@ struct ph7_vm {
 	sxbool bErrReport;         /* TRUE to report all runtime Error/Warning/Notice/Deprecated */
 	int nRecursionDepth;       /* Current recursion depth */
 	int nMaxDepth;             /* Maximum allowed recursion depth */
-	int nObDepth;              /* OB depth */
 	int nExceptDepth;          /* Exception depth */
 	int closure_cnt;           /* Loaded closures counter */
 	int json_rc;               /* JSON return status [refer to json_encode()/json_decode()]*/