diff --git a/common/table.h b/common/table.h
index 3c603674..21ce2d11 100644
--- a/common/table.h
+++ b/common/table.h
@@ -11,6 +11,7 @@ extern uiTableValueType uiprivTableModelColumnType(uiTableModel *m, int column);
 extern int uiprivTableModelNumRows(uiTableModel *m);
 extern uiTableValue *uiprivTableModelCellValue(uiTableModel *m, int row, int column);
 extern void uiprivTableModelSetCellValue(uiTableModel *m, int row, int column, const uiTableValue *value);
+extern const uiTableTextColumnOptionalParams uiprivDefaultTextColumnOptionalParams;
 
 #ifdef __cplusplus
 }
diff --git a/common/tablemodel.c b/common/tablemodel.c
index c7c52a3f..b1cd1e89 100644
--- a/common/tablemodel.c
+++ b/common/tablemodel.c
@@ -42,3 +42,7 @@ void uiprivTableModelSetCellValue(uiTableModel *m, int row, int column, const ui
 	mh = uiprivTableModelHandler(m);
 	(*(mh->SetCellValue))(mh, m, row, column, value);
 }
+
+const uiTableTextColumnOptionalParams uiprivDefaultTextColumnOptionalParams = {
+	.ColorModelColumn = -1,
+};
diff --git a/darwin/tablecolumn.m b/darwin/tablecolumn.m
index d37daf8a..5547336d 100644
--- a/darwin/tablecolumn.m
+++ b/darwin/tablecolumn.m
@@ -51,10 +51,6 @@ static BOOL isCellEditable(uiTableModel *m, NSInteger row, int modelColumn)
 	return editable != 0;
 }
 
-static uiTableTextColumnOptionalParams defaultTextColumnOptionalParams = {
-	.ColorModelColumn = -1,
-};
-
 struct textColumnCreateParams {
 	uiTable *t;
 	uiTableModel *m;
@@ -623,9 +619,10 @@ void uiTableAppendTextColumn(uiTable *t, const char *name, int textModelColumn,
 	p.makeTextField = YES;
 	p.textModelColumn = textModelColumn;
 	p.textEditableColumn = textEditableModelColumn;
-	if (params == NULL)
-		params = &defaultTextColumnOptionalParams;
-	p.textParams = *params;
+	if (params != NULL)
+		p.textParams = *params;
+	else
+		p.textParams = uiprivDefaultTextColumnOptionalParams;
 
 	str = [NSString stringWithUTF8String:name];
 	col = [[uiprivTextImageCheckboxTableColumn alloc] initWithIdentifier:str params:&p];
@@ -665,9 +662,10 @@ void uiTableAppendImageTextColumn(uiTable *t, const char *name, int imageModelCo
 	p.makeTextField = YES;
 	p.textModelColumn = textModelColumn;
 	p.textEditableColumn = textEditableModelColumn;
-	if (textParams == NULL)
-		textParams = &defaultTextColumnOptionalParams;
-	p.textParams = *textParams;
+	if (textParams != NULL)
+		p.textParams = *textParams;
+	else
+		p.textParams = uiprivDefaultTextColumnOptionalParams;
 
 	p.makeImage = YES;
 	p.imageModelColumn = imageModelColumn;
@@ -711,9 +709,10 @@ void uiTableAppendCheckboxTextColumn(uiTable *t, const char *name, int checkboxM
 	p.makeTextField = YES;
 	p.textModelColumn = textModelColumn;
 	p.textEditableColumn = textEditableModelColumn;
-	if (textParams == NULL)
-		textParams = &defaultTextColumnOptionalParams;
-	p.textParams = *textParams;
+	if (textParams != NULL)
+		p.textParams = *textParams;
+	else
+		p.textParams = uiprivDefaultTextColumnOptionalParams;
 
 	p.makeCheckbox = YES;
 	p.checkboxModelColumn = checkboxModelColumn;
diff --git a/unix/table.c b/unix/table.c
index cd9734d3..8fae7960 100644
--- a/unix/table.c
+++ b/unix/table.c
@@ -87,11 +87,6 @@ static void onEdited(uiTableModel *m, int column, const char *pathstr, const uiT
 	uiprivTableModelSetCellValue(m, row, column, tvalue);
 }
 
-// TODO deduplicate this between platforms
-static uiTableTextColumnOptionalParams defaultTextColumnOptionalParams = {
-	.ColorModelColumn = -1,
-};
-
 struct textColumnParams {
 	uiTable *t;
 	uiTableModel *m;
@@ -282,7 +277,7 @@ static void addTextColumn(uiTable *t, GtkTreeViewColumn *c, int textModelColumn,
 	if (params != NULL)
 		p->params = *params;
 	else
-		p->params = defaultTextColumnOptionalParams;
+		p->params = uiprivDefaultTextColumnOptionalParams;
 
 	r = gtk_cell_renderer_text_new();
 	gtk_tree_view_column_pack_start(c, r, TRUE);
diff --git a/windows/table.cpp b/windows/table.cpp
index 372a699b..801f65d0 100644
--- a/windows/table.cpp
+++ b/windows/table.cpp
@@ -7,10 +7,6 @@
 // - implement keyboard accessibility
 // - implement accessibility in general (Dynamic Annotations maybe?)
 
-static uiTableTextColumnOptionalParams defaultTextColumnOptionalParams = {
-	/*TODO.ColorModelColumn = */-1,
-};
-
 uiTableModel *uiNewTableModel(uiTableModelHandler *mh)
 {
 	uiTableModel *m;
@@ -401,7 +397,7 @@ static uiprivTableColumnParams *appendColumn(uiTable *t, const char *name, int c
 	p = uiprivNew(uiprivTableColumnParams);
 	p->textModelColumn = -1;
 	p->textEditableColumn = -1;
-	p->textParams = defaultTextColumnOptionalParams;
+	p->textParams = uiprivDefaultTextColumnOptionalParams;
 	p->imageModelColumn = -1;
 	p->checkboxModelColumn = -1;
 	p->checkboxEditableColumn = -1;