diff --git a/calendar/libxpical/oeICalEventImpl.cpp b/calendar/libxpical/oeICalEventImpl.cpp
index baf02eedd35..cf731ce13c3 100644
--- a/calendar/libxpical/oeICalEventImpl.cpp
+++ b/calendar/libxpical/oeICalEventImpl.cpp
@@ -1696,7 +1696,7 @@ bool oeICalEventImpl::ParseIcalComponent( icalcomponent *comp )
         tmpstr = icalproperty_get_uid( prop );
         SetId( tmpstr );
     } else {
-        ReportError( oeIICalError::WARN, oeIICalError::UID_NOT_FOUND, "oeICalEventImpl::ParseIcalComponent() : Warning UID not found! Assigning new one." );
+        ReportError( oeIICalError::CAL_WARN, oeIICalError::UID_NOT_FOUND, "oeICalEventImpl::ParseIcalComponent() : Warning UID not found! Assigning new one." );
         char uidstr[40];
         GenerateUUID( uidstr );
         SetId( uidstr );
diff --git a/calendar/libxpical/oeICalImpl.cpp b/calendar/libxpical/oeICalImpl.cpp
index 4fa57927d7e..0a5895d0014 100644
--- a/calendar/libxpical/oeICalImpl.cpp
+++ b/calendar/libxpical/oeICalImpl.cpp
@@ -2135,7 +2135,7 @@ oeICalImpl::GetAllTodos(nsISimpleEnumerator **resultList )
 
 NS_IMETHODIMP oeICalImpl::ReportError( PRInt16 severity, PRUint32 errorid, const char *errorstring ) {
 
-    if( severity >= oeIICalError::PROBLEM ) {
+    if( severity >= oeIICalError::CAL_PROBLEM ) {
         #ifdef ICAL_DEBUG
             printf( "oeICalImpl::ReportError(%d,%x) : %s\n", severity, errorid, errorstring );
         #endif
diff --git a/calendar/libxpical/oeIICal.idl b/calendar/libxpical/oeIICal.idl
index 2e340ad1b94..67d121d6c71 100644
--- a/calendar/libxpical/oeIICal.idl
+++ b/calendar/libxpical/oeIICal.idl
@@ -274,10 +274,10 @@ interface oeIICalContainer : nsISupports
 interface oeIICalError : nsISupports
 {
     //severity codes
-    const long DEBUG = 0;
-    const long WARN = 1;
-    const long PROBLEM = 2;
-    const long CRITICAL = 3;
+    const long CAL_DEBUG = 0;
+    const long CAL_WARN = 1;
+    const long CAL_PROBLEM = 2;
+    const long CAL_CRITICAL = 3;
 
     //error codes
     const long UID_NOT_FOUND               =  1001;