diff --git a/pkg/JuliaInterface/src/calls.c b/pkg/JuliaInterface/src/calls.c
index 2170bf368..4938ded1b 100644
--- a/pkg/JuliaInterface/src/calls.c
+++ b/pkg/JuliaInterface/src/calls.c
@@ -16,7 +16,7 @@ typedef struct {
 // Helper used to call GAP functions from Julia.
 //
 // This function is used by GAP.jl
-jl_value_t * call_gap_func(Obj func, jl_value_t * args)
+Obj call_gap_func(Obj func, jl_value_t * args)
 {
     if (!jl_is_tuple(args))
         jl_error("<args> must be a tuple");
@@ -74,10 +74,7 @@ jl_value_t * call_gap_func(Obj func, jl_value_t * args)
         return_value = CallFuncList(func, arg_list);
     }
     END_GAP_SYNC();
-    if (return_value == NULL) {
-        return jl_nothing;
-    }
-    return julia_gap(return_value);
+    return return_value;
 }
 
 
diff --git a/src/ccalls.jl b/src/ccalls.jl
index 99764141d..e4097736f 100644
--- a/src/ccalls.jl
+++ b/src/ccalls.jl
@@ -279,10 +279,11 @@ end
 # specialize call_gap_func for the no-keywords case, for performance
 function call_gap_func_nokw(func::GapObj, args...)
     if TNUM_OBJ(func) == T_FUNCTION && length(args) <= 6
-        _call_gap_func(func, args...)
+        ret = _call_gap_func(func, args...)
     else
-        ccall((:call_gap_func, JuliaInterface_path()), Any, (Any, Any), func, args)
+        ret = ccall((:call_gap_func, JuliaInterface_path()), Ptr{Cvoid}, (Any, Any), func, args)
     end
+    return _GAP_TO_JULIA(ret)
 end
 
 # make all GapObj callable
@@ -307,7 +308,7 @@ end
 function _call_gap_func(func::GapObj)
     fptr = GET_FUNC_PTR(func, 0)
     ret = ccall(fptr, Ptr{Cvoid}, (Ptr{Cvoid},), pointer_from_objref(func))
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 1 argument
@@ -320,7 +321,7 @@ function _call_gap_func(func::GapObj, a1)
         pointer_from_objref(func),
         _JULIA_TO_GAP(a1),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 2 arguments
@@ -334,7 +335,7 @@ function _call_gap_func(func::GapObj, a1, a2)
         _JULIA_TO_GAP(a1),
         _JULIA_TO_GAP(a2),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 3 arguments
@@ -349,7 +350,7 @@ function _call_gap_func(func::GapObj, a1, a2, a3)
         _JULIA_TO_GAP(a2),
         _JULIA_TO_GAP(a3),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 4 arguments
@@ -365,7 +366,7 @@ function _call_gap_func(func::GapObj, a1, a2, a3, a4)
         _JULIA_TO_GAP(a3),
         _JULIA_TO_GAP(a4),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 5 arguments
@@ -382,7 +383,7 @@ function _call_gap_func(func::GapObj, a1, a2, a3, a4, a5)
         _JULIA_TO_GAP(a4),
         _JULIA_TO_GAP(a5),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end
 
 # 6 arguments
@@ -408,5 +409,5 @@ function _call_gap_func(func::GapObj, a1, a2, a3, a4, a5, a6)
         _JULIA_TO_GAP(a5),
         _JULIA_TO_GAP(a6),
     )
-    return _GAP_TO_JULIA(ret)
+    return ret
 end