diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index ed9b69b1cd..dabc946ebf 100644
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -40,7 +40,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#if !defined(__WATCOMC__)
+#if !wxONLY_WATCOM_EARLIER_THAN(1,4)
     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
         #include <errno.h>
     #endif
diff --git a/src/common/utilscmn.cpp b/src/common/utilscmn.cpp
index c0d7e529c8..e259d39066 100644
--- a/src/common/utilscmn.cpp
+++ b/src/common/utilscmn.cpp
@@ -62,7 +62,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#if !defined(__WATCOMC__)
+#if !wxONLY_WATCOM_EARLIER_THAN(1,4)
     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
         #include <errno.h>
     #endif