diff --git a/DESCRIPTION b/DESCRIPTION
index fd5f0958f743f254c123963cc33c08c4236e3103..060cdf35caf03917091d7ba6dcd305a90e52d2fc 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.6.9.33
-Date: 2021-01-26
+Version: 1.6.9.34
+Date: 2021-01-27
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),
diff --git a/NEWS.md b/NEWS.md
index b4cd125ef75dd8a231b3c71e05192069ace86267..edfe8ed83d64e4335c46b3a5f2e7e5d680729d88 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -2,12 +2,16 @@
 
 
 
-### Unreleased
+### 1.6.9.34 Release Notes (2021-01-27)
 
 #### Major user-visible changes
 
 - `Imax()` now returns an error message when `IndPeriod_Run` doesn't select 24 hours by day, instead of `numeric(0)`. ([#92](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/92))
 
+
+#### Minor user-visible changes
+- Fixed warning returned by GCC Fortran in `frun_GR5H.f90`. ([#93](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/93))
+
 ____________________________________________________________________________________
 
 
diff --git a/src/frun_GR5H.f90 b/src/frun_GR5H.f90
index 2027f47cee451b0a239d868974bfffb6ff109357..0de3f72964d34716ab433b03fe3d45e735579e2d 100644
--- a/src/frun_GR5H.f90
+++ b/src/frun_GR5H.f90
@@ -76,8 +76,11 @@
       doubleprecision, dimension(NMISC) :: MISC
       doubleprecision :: D,P1,E,Q
 
-      IF (Imax .LT. 0.) IsIntStore = .FALSE.
-      IF (Imax .GE. 0.) IsIntStore = .TRUE.
+      IF (Imax .LT. 0.) THEN
+        IsIntStore = .FALSE.
+      ELSE
+        IsIntStore = .TRUE.
+      ENDIF
 
       !--------------------------------------------------------------
       ! Initializations