diff --git a/src/base/cmd/cmdHist.c b/src/base/cmd/cmdHist.c
index b8cfc98f9..0aaf6d5cf 100644
--- a/src/base/cmd/cmdHist.c
+++ b/src/base/cmd/cmdHist.c
@@ -102,7 +102,7 @@ void Cmd_HistoryAddCommand(    Abc_Frame_t * p, const char * command )
 ***********************************************************************/
 void Cmd_HistoryRead( Abc_Frame_t * p )
 {
-#if defined(WIN32) && defined(ABC_USE_HISTORY)
+#if defined(ABC_USE_HISTORY)
     char Buffer[ABC_MAX_STR];
     FILE * pFile;
     assert( Vec_PtrSize(p->aHistory) == 0 );
@@ -133,7 +133,7 @@ void Cmd_HistoryRead( Abc_Frame_t * p )
 ***********************************************************************/
 void Cmd_HistoryWrite( Abc_Frame_t * p, int Limit )
 {
-#if defined(WIN32) && defined(ABC_USE_HISTORY)
+#if defined(ABC_USE_HISTORY)
     FILE * pFile;
     char * pStr; 
     int i;
@@ -163,7 +163,7 @@ void Cmd_HistoryWrite( Abc_Frame_t * p, int Limit )
 ***********************************************************************/
 void Cmd_HistoryPrint( Abc_Frame_t * p, int Limit )
 {
-#if defined(WIN32) && defined(ABC_USE_HISTORY) 
+#if defined(ABC_USE_HISTORY) 
     char * pStr; 
     int i;
     Limit = Abc_MaxInt( 0, Vec_PtrSize(p->aHistory)-Limit );