diff --git a/.buildlibrary b/.buildlibrary
index f1f4899d0..0a4be0679 100644
--- a/.buildlibrary
+++ b/.buildlibrary
@@ -1,4 +1,4 @@
-ValidationKey: '5415219'
+ValidationKey: '5433828'
 AcceptedWarnings:
 - 'Warning: package ''.*'' was built under R version'
 - 'Warning: namespace ''.*'' is not available and has been replaced'
diff --git a/.zenodo.json b/.zenodo.json
index 627eecd0c..7805469c6 100644
--- a/.zenodo.json
+++ b/.zenodo.json
@@ -1,6 +1,6 @@
 {
   "title": "mrmagpie: madrat based MAgPIE Input Data Library",
-  "version": "0.29.1",
+  "version": "0.29.2",
   "description": "<p>Provides functions for MAgPIE country and cellular input data generation.<\/p>",
   "creators": [
     {
diff --git a/DESCRIPTION b/DESCRIPTION
index cec50cf9f..13dbffe53 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: mrmagpie
 Type: Package
 Title: madrat based MAgPIE Input Data Library
-Version: 0.29.1
+Version: 0.29.2
 Date: 2020-12-13
 Authors@R: c(person("Kristine", "Karstens", email = "karstens@pik-potsdam.de", role = c("aut","cre")),
              person("Jan Philipp", "Dietrich", email = "dietrich@pik-potsdam.de", role = "aut"),
diff --git a/NAMESPACE b/NAMESPACE
index 589b2957c..fdc93b203 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -73,6 +73,7 @@ importFrom(ncdf4,nc_open)
 importFrom(ncdf4,ncatt_get)
 importFrom(ncdf4,ncvar_get)
 importFrom(raster,"extent<-")
+importFrom(raster,"values<-")
 importFrom(raster,aggregate)
 importFrom(raster,area)
 importFrom(raster,as.matrix)
@@ -85,6 +86,7 @@ importFrom(raster,raster)
 importFrom(raster,rasterToPoints)
 importFrom(raster,subset)
 importFrom(raster,t)
+importFrom(raster,values)
 importFrom(raster,writeRaster)
 importFrom(readxl,read_xls)
 importFrom(stats,cutree)
diff --git a/R/readIPCCClimate.R b/R/readIPCCClimate.R
index 47f2d42da..9f1984243 100644
--- a/R/readIPCCClimate.R
+++ b/R/readIPCCClimate.R
@@ -9,27 +9,28 @@
 #' readSource("IPCCClimate", convert="onlycorrect")
 #' }
 #'
-#' @importFrom raster raster aggregate extract levels
+#' @importFrom raster raster aggregate extract levels values values<-
 
 readIPCCClimate <-  function(){
 
   raster_1d12   <- raster("CLIMATE_ZONE.rst")
+  values(raster_1d12)[values(raster_1d12) == 0] <- NA
   zone_names    <- as.character(levels(raster_1d12)[[1]]$Class_name)
-  raster_1d2    <- raster::aggregate(raster_1d12, fact=6, fun=max) # to avoid gaps (since 0 is NA)
+  raster_1d2    <- raster::aggregate(raster_1d12, fact=6, fun="modal", na.rm=TRUE)
 
   map           <- as.data.frame(magpie_coord)
   mag           <- clean_magpie(as.magpie(raster::extract(raster_1d2,map), spatial=1))
-  #map[mag==0]   <- 6
   cellNames     <- toolMappingFile(type="cell",name="CountryToCellMapping.csv",readcsv=TRUE)$celliso
   getNames(mag) <- "NA"
   getYears(mag) <- NULL
   getCells(mag) <- cellNames
-  getSets(mag)    <- c("country.cell","t","climatezone")
+  getSets(mag)  <- c("country.cell","t","climatezone")
+  mag[is.na(mag)] <- 0
 
   out   <- add_columns(mag, dim=3.1, addnm=zone_names)
   out[] <- 0
   for(zone in c(zone_names)){out[,,zone][which(mag==which(zone_names==zone))] <- 1}
-  out[,,"NA"][which(dimSums(out, dim=3)==0)] <- 1
+  out[,,"NA"][which(dimSums(out[,,"NA",invert=TRUE], dim=3)==0)] <- 1
   out <- mbind(out[,,zone_names],out[,,"NA"])
 
   return(out)
diff --git a/README.md b/README.md
index dcfc0d99b..501ad2a3a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # madrat based MAgPIE Input Data Library
 
-R package **mrmagpie**, version **0.29.1**
+R package **mrmagpie**, version **0.29.2**
 
   
 
@@ -39,7 +39,7 @@ In case of questions / problems please contact Kristine Karstens <karstens@pik-p
 To cite package **mrmagpie** in publications use:
 
 Karstens K, Dietrich J, Chen D, Windisch M, Alves M, Beier F, v. Jeetze P, Mishra A, Humpenoeder F (2020). _mrmagpie: madrat based
-MAgPIE Input Data Library_. R package version 0.29.1.
+MAgPIE Input Data Library_. R package version 0.29.2.
 
 A BibTeX entry for LaTeX users is
 
@@ -48,7 +48,7 @@ A BibTeX entry for LaTeX users is
   title = {mrmagpie: madrat based MAgPIE Input Data Library},
   author = {Kristine Karstens and Jan Philipp Dietrich and David Chen and Michael Windisch and Marcos Alves and Felicitas Beier and Patrick {v. Jeetze} and Abhijeet Mishra and Florian Humpenoeder},
   year = {2020},
-  note = {R package version 0.29.1},
+  note = {R package version 0.29.2},
 }
 ```