diff --git a/assets/espresso/neb.j2.in b/assets/espresso/neb.j2.in
index 1560e217..06f8ca84 100644
--- a/assets/espresso/neb.j2.in
+++ b/assets/espresso/neb.j2.in
@@ -6,7 +6,7 @@ BEGIN_PATH_INPUT
   nstep_path        = 50,
   ds                = 2.D0,
   opt_scheme        = "broyden",
-  num_of_images     = {{ 2 + (input.INTERMEDIATE_IMAGES.length || neb.nImages) }},
+  num_of_images     = {{ 2 + (input.INTERMEDIATE_IMAGES.length or neb.nImages) }},
   k_max             = 0.3D0,
   k_min             = 0.2D0,
   CI_scheme         = "auto",
diff --git a/assets/vasp/INCAR_neb.j2 b/assets/vasp/INCAR_neb.j2
index bf5c5e70..fb7fccdd 100644
--- a/assets/vasp/INCAR_neb.j2
+++ b/assets/vasp/INCAR_neb.j2
@@ -4,6 +4,6 @@ EDIFFG = -0.001
 ENCUT = 500
 NELM = 100
 NSW = 100
-IMAGES = {{ input.INTERMEDIATE_IMAGES.length || neb.nImages }}
+IMAGES = {{ input.INTERMEDIATE_IMAGES.length or neb.nImages }}
 SPRING = -5
 ISPIN = 2