diff --git a/src/interfaces.jl b/src/interfaces.jl
index 36b4e6a..9cebb55 100644
--- a/src/interfaces.jl
+++ b/src/interfaces.jl
@@ -168,7 +168,7 @@ function cudss_get(data::CudssData, parameter::String)
   type = CUDSS_TYPES[parameter]
   val = Ref{type}()
   nbytes = sizeof(val)
-  nbytes_written = Ref{Cint}()
+  nbytes_written = Ref{Csize_t}()
   cudssDataGet(handle(), data, parameter, val, nbytes, nbytes_written)
   return val[]
 end
@@ -178,7 +178,7 @@ function cudss_get(config::CudssConfig, parameter::String)
   type = CUDSS_TYPES[parameter]
   val = Ref{type}()
   nbytes = sizeof(val)
-  nbytes_written = Ref{Cint}()
+  nbytes_written = Ref{Csize_t}()
   cudssConfigGet(config, parameter, val, nbytes, nbytes_written)
   return val[]
 end