diff --git a/python/obitools3/obidms/capi/obitypes.pxd b/python/obitools3/obidms/capi/obitypes.pxd
index 57d3461..8e72129 100644
--- a/python/obitools3/obidms/capi/obitypes.pxd
+++ b/python/obitools3/obidms/capi/obitypes.pxd
@@ -8,15 +8,11 @@ from posix.types cimport time_t
 cdef extern from *:
     ctypedef char* const_char_p "const char*"
 
+
 cdef extern from "encode.h" nogil:
     bint only_ATGC(const_char_p seq)
 
 
-cdef extern from "obidmscolumn.h" nogil:
-
-    ctypedef int32_t obiversion_t
-
-
 cdef extern from "obitypes.h" nogil:
 
     enum OBIType:
@@ -37,10 +33,12 @@ cdef extern from "obitypes.h" nogil:
     
     ctypedef OBIBool obibool_t
     ctypedef int32_t obiint_t
-    ctypedef double obifloat_t
-    ctypedef char obichar_t  
+    ctypedef double  obifloat_t
+    ctypedef char    obichar_t  
     ctypedef int64_t index_t
 
+    ctypedef int32_t obiversion_t
+
     extern obiint_t      OBIInt_NA
     extern index_t       OBIIdx_NA
     extern obifloat_t    OBIFloat_NA