diff --git a/src/trapping/lffft.f b/src/trapping/lffft.f
index 521c61e8771fdc0a800e8135bbb558ee8614753a..d89eb792dcceb9f704549050e7378ca5c5cd1619 100644
--- a/src/trapping/lffft.f
+++ b/src/trapping/lffft.f
@@ -41,8 +41,8 @@ CCC   DIMENSION TMS(LE,3)
       READ(IT)VKS,EXRIS
       NLEM=LE*(LE+2)
       NLEMT=NLEM+NLEM
-      IF(IS.GT.2222)GO TO 120
-      IF(IS.GT.1111)GO TO 125
+      IF(IS.GE.2222)GO TO 120
+      IF(IS.GE.1111)GO TO 125
       IF(IS.GE.0)GO TO 135
       IF(IS.LT.0)GO TO 145
   120 CONTINUE