diff --git a/VER.txt b/VER.txt
index cf4156e..4c54772 100644
--- a/VER.txt
+++ b/VER.txt
@@ -1 +1 @@
-11012019
\ No newline at end of file
+29012019
\ No newline at end of file
diff --git a/src/rinex.c b/src/rinex.c
index a0cbfba..b503805 100644
--- a/src/rinex.c
+++ b/src/rinex.c
@@ -2825,6 +2825,9 @@ BOOL RINEX_DecodeGPSNavigationFile(
   if( result == FALSE )
   {
     GNSS_ERROR_MSG( "RINEX_GetHeader returned FALSE." );
+    FILE *ftoold=fopen("/tmp/toold", "ab+");
+    if(ftoold) fclose(ftoold);
+
     return FALSE;
   }
 
@@ -3928,6 +3931,9 @@ BOOL RINEX_GetKlobucharIonoParametersFromNavFile(
   if( result == FALSE )
   {
     GNSS_ERROR_MSG( "RINEX_GetHeader returned FALSE." );
+    FILE *ftoold=fopen("/tmp/toold", "ab+");
+    if(ftoold) fclose(ftoold);
+
     return FALSE;
   }
 
diff --git a/src/sondemod.c b/src/sondemod.c
index 28a2aea..d1fc82e 100644
--- a/src/sondemod.c
+++ b/src/sondemod.c
@@ -1894,7 +1894,8 @@ static void decodeframe(uint8_t m, uint32_t ip, uint32_t fromport)
                   }
                   if (almage+maxalmage>gpstime) anonym0->posok = 1;
                   else if (almanachage>0UL) {
-		     fopen("/tmp/toold", "ab+");
+		     FILE *ftoold=fopen("/tmp/toold", "ab+");
+		     if(ftoold) fclose(ftoold);
                      osic_WrINT32(almanachage/60UL, 10UL);
                      osi_WrStrLn(" Min (almanach too old)", 24ul);
                      if (almread+4UL<=systime) {
@@ -1950,7 +1951,8 @@ static void decodeframe(uint8_t m, uint32_t ip, uint32_t fromport)
 */
 
    if (contextr9.posok  && contextr9.lat!=0.0 && contextr9.long0!=0.0 && contextr9.heig==0.0 && contextr9.dir==0.0) {
-	fopen("/tmp/toold", "ab+");
+	FILE *ftoold=fopen("/tmp/toold", "ab+");
+	if(ftoold) fclose(ftoold);
    }
 
    if (contextr9.posok  && contextr9.lat!=0.0 && contextr9.long0!=0.0) {