diff --git a/src/das2c_data.c b/src/das2c_data.c
index 9ba77ac..42ac09c 100644
--- a/src/das2c_data.c
+++ b/src/das2c_data.c
@@ -304,7 +304,7 @@ static IDL_VPTR das2c_api_data(int argc, IDL_VPTR* argv)
 	*/ 
 	
 	size_t I = 0;
-	size_t uSlowestBytes = 0;
+	size_t uFastestBytes = 0;
 	
 	if(nDsRank == nVarRank){
 		memcpy(pDest, pSrc, uBytes);
@@ -325,12 +325,12 @@ static IDL_VPTR das2c_api_data(int argc, IDL_VPTR* argv)
 				
 				if(aVarShape[0] != aDsShape[0]) das2c_IdlMsgExit("Logic error 3 in das2c_data()");
 				
-				uSlowestBytes = aDsShape[0] * uValSz;
+				uFastestBytes = aDsShape[1] * uValSz;
 				
 				/* for each I, fill with a single I value J times */
 				for(I = 0; I < aDsShape[0]; ++I)					
 					das2c_memset(
-						(byte*)(pDest + (I*uSlowestBytes)), pSrc + I*uValSz, uValSz, aDsShape[1]
+						(byte*)(pDest + (I*uFastestBytes)), pSrc + I*uValSz, uValSz, aDsShape[1]
 					);
 				
 			}
diff --git a/test/das2c_test.pro b/test/das2c_test.pro
index 6a25adc..774d49d 100644
--- a/test/das2c_test.pro
+++ b/test/das2c_test.pro
@@ -24,6 +24,13 @@ v_freq
 v_amp   = das2c_vars(pd_amp,  'center')
 v_amp
 
+;aTimes  = das2c_data(v_time, {i:0,   j:'*'} )  ; TODO
+aTimes  = das2c_data(v_time)
+;aFreqs  = das2c_data(v_freq, {i:'*', j:0  } )  ; TODO
+aFreqs  = das2c_data(v_freq)
+
+aAmp    = das2c_data(v_amp)
+
 das2c_props(ds, 'title')
 
 das2c_props(pd_time, 'label')
@@ -36,11 +43,6 @@ das2c_props(pd_amp)
 das2c_free(query)
 exit
 
-aTimes  = das2c_data(v_time, {i:0,   j:'*'} )
-aFreqs  = das2c_data(v_freq, {i:'*', j:0  } )
-aAmp    = das2c_data(v_amp)
-
-
 ; Next interation, for waveforms
 exit
 v_start  = das2c_vars(pd_time, 'reference')