diff --git a/cbits/grpc_haskell.c b/cbits/grpc_haskell.c
index 72a9a44..27c65cd 100644
--- a/cbits/grpc_haskell.c
+++ b/cbits/grpc_haskell.c
@@ -11,3 +11,14 @@ grpc_event grpc_completion_queue_pluck_(grpc_completion_queue *cq, void *tag,
                                          void *reserved) {
   return grpc_completion_queue_pluck(cq, tag, *deadline, reserved);
 }
+
+grpc_call *grpc_channel_create_call_(grpc_channel *channel,
+                                     grpc_call *parent_call,
+                                     uint32_t propagation_mask,
+                                     grpc_completion_queue *completion_queue,
+                                     const char *method, const char *host,
+                                     gpr_timespec *deadline, void *reserved) {
+  return grpc_channel_create_call(channel, parent_call, propagation_mask,
+                                  completion_queue, method, host, *deadline,
+                                  reserved);
+}
diff --git a/grpc-haskell.cabal b/grpc-haskell.cabal
index 75b3283..10d0b65 100644
--- a/grpc-haskell.cabal
+++ b/grpc-haskell.cabal
@@ -39,7 +39,8 @@ library
 test-suite test
   build-depends:
       base
-    , QuickCheck        
+    , QuickCheck
+    , grpc-haskell
   default-language:     Haskell2010
   ghc-options:          -Wall -fwarn-incomplete-patterns -O2 -threaded -rtsopts
   hs-source-dirs:       tests
diff --git a/include/grpc_haskell.h b/include/grpc_haskell.h
index 2c206e3..b25d364 100644
--- a/include/grpc_haskell.h
+++ b/include/grpc_haskell.h
@@ -7,6 +7,8 @@ grpc_event *grpc_completion_queue_pluck_(grpc_completion_queue *cq, void *tag,
                                         gpr_timespec *deadline);
 
 grpc_call *grpc_channel_create_call_(grpc_channel *channel,
-                                    grpc_completion_queue *completion_queue,
-                                    const char *method, const char *host,
-                                    gpr_timespec *deadline);
+                                     grpc_call *parent_call,
+                                     uint32_t propagation_mask,
+                                     grpc_completion_queue *completion_queue,
+                                     const char *method, const char *host,
+                                     gpr_timespec *deadline, void *reserved);
diff --git a/src/Network/GRPC/Core.chs b/src/Network/GRPC/Core.chs
index fa5a1cc..92b2ddf 100644
--- a/src/Network/GRPC/Core.chs
+++ b/src/Network/GRPC/Core.chs
@@ -44,7 +44,7 @@ data ArgValue = ArgString String | ArgInt Int
 {#pointer *grpc_op as Op newtype #}
 
 {#fun grpc_init as ^ {} -> `()'#}
-{#fun grpc_shutdown as ^ {} -> `()'#} 
+{#fun grpc_shutdown as ^ {} -> `()'#}
 
 {#fun grpc_completion_queue_create as ^ {`Ptr ()'} -> `CompletionQueue'#}
 
@@ -54,7 +54,7 @@ data ArgValue = ArgString String | ArgInt Int
 {#fun grpc_completion_queue_shutdown as ^ {`CompletionQueue'} -> `()'#}
 {#fun grpc_completion_queue_destroy as ^ {`CompletionQueue'} -> `()'#}
 
-{#fun grpc_channel_create_call_ as ^ {`Channel', `CompletionQueue', `String', `String', `CTimeSpecPtr'} -> `Call'#}
+{#fun grpc_channel_create_call_ as ^ {`Channel', `Call', `Int', `CompletionQueue', `String', `String', `CTimeSpecPtr', `Ptr ()'} -> `Call'#}
 {#fun grpc_insecure_channel_create as ^ {`String', `ChannelArgsPtr', `Ptr ()'} -> `Channel'#}
 {#fun grpc_channel_destroy as ^ {`Channel'} -> `()'#}
 
diff --git a/src/Network/GRPC/Core/Constants.hsc b/src/Network/GRPC/Core/Constants.hsc
index eea2307..0ff3b59 100644
--- a/src/Network/GRPC/Core/Constants.hsc
+++ b/src/Network/GRPC/Core/Constants.hsc
@@ -1,6 +1,7 @@
 module Network.GRPC.Core.Constants where
 
 #include "grpc/grpc.h"
+#include "grpc/impl/codegen/propagation_bits.h"
 
 argEnableCensus :: Int
 argEnableCensus = #const GRPC_ARG_ENABLE_CENSUS
@@ -16,3 +17,18 @@ writeBufferHint = #const GRPC_WRITE_BUFFER_HINT
 
 writeNoCompress :: Int
 writeNoCompress = #const GRPC_WRITE_NO_COMPRESS
+
+newtype PropagationMask = PropagationMask {unPropagationMask :: Int}
+  deriving (Show, Eq, Ord)
+
+propagateDeadline :: Int
+propagateDeadline = #const GRPC_PROPAGATE_DEADLINE
+
+propagateCensusStatsContext :: Int
+propagateCensusStatsContext = #const GRPC_PROPAGATE_CENSUS_STATS_CONTEXT
+
+propagateCensusTracingContext :: Int
+propagateCensusTracingContext = #const GRPC_PROPAGATE_CENSUS_TRACING_CONTEXT
+
+propagateCancellation :: Int
+propagateCancellation = #const GRPC_PROPAGATE_CANCELLATION