diff --git a/src/libqmc/qmc_context.cpp b/src/libqmc/qmc_context.cpp
index fee21e2..d87f16c 100644
--- a/src/libqmc/qmc_context.cpp
+++ b/src/libqmc/qmc_context.cpp
@@ -54,6 +54,9 @@ QmcContext::lookupName(pmID pmid, QString **name)
     char *value;
     int sts = 0;
 
+    if ((sts = pmUseContext(my.context)) < 0)
+	return sts;
+
     if (my.pmidCache.contains(pmid) == false) {
 	if ((sts = pmNameID(pmid, &value)) >= 0) {
 	    *name = new QString(value);
@@ -78,6 +81,9 @@ QmcContext::lookupPMID(const char *name, pmID& id)
     QString key = name;
     int sts;
 
+    if ((sts = pmUseContext(my.context)) < 0)
+	return sts;
+
     if (my.nameCache.contains(key) == false) {
         if ((sts = pmLookupName(1, (char **)(&name), &id)) >= 0)
 	    my.nameCache.insert(key, id);
@@ -109,6 +115,9 @@ QmcContext::lookupDesc(pmID pmid, QmcDesc **descriptor)
     int sts;
     QmcDesc *descPtr;
 
+    if ((sts = pmUseContext(my.context)) < 0)
+	return sts;
+
     if (my.descCache.contains(pmid) == false) {
 	descPtr = new QmcDesc(pmid);
 	if (descPtr->status() < 0) {
@@ -168,6 +177,9 @@ QmcContext::lookupInDom(QmcDesc *descPtr, uint_t& indom)
     int i, sts;
     QmcIndom *indomPtr;
 
+    if ((sts = pmUseContext(my.context)) < 0)
+	return sts;
+
     indom = UINT_MAX;
     if (descPtr->desc().indom != PM_INDOM_NULL) {
 	for (i = 0; i < my.indoms.size(); i++)
@@ -370,6 +382,9 @@ QmcContext::traverse(const char *name, QStringList &list)
     theStringList = &list;
     theStringList->clear();
 
+    if ((sts = pmUseContext(my.context)) < 0)
+	return sts;
+
     sts = pmTraversePMNS(name, QmcContext::dometric);
 
     if (pmDebug & DBG_TRACE_PMC) {