diff --git a/Lib/scilab/scichar.swg b/Lib/scilab/scichar.swg
index 66818e991..f3ea939a2 100644
--- a/Lib/scilab/scichar.swg
+++ b/Lib/scilab/scichar.swg
@@ -103,8 +103,7 @@ SWIG_SciString_AsCharPtr(void *pvApiCtx, int iVar, char *pcValue, int iLength, c
     strncpy(pcValue, pcTmpValue, iLength);
   }
 
-  free(pcTmpValue);
-
+  freeAllocatedSingleString(pcTmpValue);
   return SWIG_OK;
 }
 }