diff --git a/Lib/scilab/scirun.swg b/Lib/scilab/scirun.swg
index 961ac1c21..9c88df128 100644
--- a/Lib/scilab/scirun.swg
+++ b/Lib/scilab/scirun.swg
@@ -49,8 +49,13 @@ static char *SWIG_Scilab_GetFuncName(void) {
 static void SWIG_Scilab_SetFuncName(char *funcName) {
   if (SwigFuncName != NULL) {
     free(SwigFuncName);
+    SwigFuncName = NULL;
+  }
+  if (funcName) {
+    SwigFuncName = (char *)malloc(strlen(funcName) + 1);
+    if (SwigFuncName)
+      strcpy(SwigFuncName, funcName);
   }
-  SwigFuncName = strdup(funcName);
 }
 
 /* Api context management functions */