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-rw-r--r--src/base/wlc/wlcShow.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/base/wlc/wlcShow.c b/src/base/wlc/wlcShow.c
index f43f8baa..59f42db5 100644
--- a/src/base/wlc/wlcShow.c
+++ b/src/base/wlc/wlcShow.c
@@ -362,7 +362,7 @@ void Wlc_NtkShow( Wlc_Ntk_t * p, Vec_Int_t * vBold )
FILE * pFile;
char FileNameDot[200];
char * pName = Extra_FileDesignName(p->pName);
- char * pSpec = p->pSpec ? Extra_FileDesignName(p->pSpec) : "unknown";
+ char * pSpec = p->pSpec ? Extra_FileDesignName(p->pSpec) : (char *)"unknown";
sprintf( FileNameDot, "%s_%s.dot", pName, pSpec );
ABC_FREE( pName );
if ( strcmp(pSpec, "unknown") )