diff --git a/samples/widgets/clrpicker.cpp b/samples/widgets/clrpicker.cpp
index adcb4b268f..1c428a0db4 100644
--- a/samples/widgets/clrpicker.cpp
+++ b/samples/widgets/clrpicker.cpp
@@ -119,7 +119,7 @@ wxEND_EVENT_TABLE()
 // implementation
 // ============================================================================
 
-#if defined(__WXGTK__)
+#if defined(__WXGTK20__)
     #define FAMILY_CTRLS NATIVE_CTRLS
 #else
     #define FAMILY_CTRLS GENERIC_CTRLS
diff --git a/samples/widgets/dirpicker.cpp b/samples/widgets/dirpicker.cpp
index 238b97caa1..003f3b51ad 100644
--- a/samples/widgets/dirpicker.cpp
+++ b/samples/widgets/dirpicker.cpp
@@ -127,7 +127,7 @@ wxEND_EVENT_TABLE()
 // implementation
 // ============================================================================
 
-#if defined(__WXGTK__)
+#if defined(__WXGTK20__)
     #define FAMILY_CTRLS NATIVE_CTRLS
 #else
     #define FAMILY_CTRLS GENERIC_CTRLS
diff --git a/samples/widgets/filepicker.cpp b/samples/widgets/filepicker.cpp
index db99b77e5b..14236781ad 100644
--- a/samples/widgets/filepicker.cpp
+++ b/samples/widgets/filepicker.cpp
@@ -144,7 +144,7 @@ wxEND_EVENT_TABLE()
 // implementation
 // ============================================================================
 
-#if defined(__WXGTK__)
+#if defined(__WXGTK20__)
     #define FAMILY_CTRLS NATIVE_CTRLS
 #else
     #define FAMILY_CTRLS GENERIC_CTRLS
diff --git a/samples/widgets/fontpicker.cpp b/samples/widgets/fontpicker.cpp
index 106fa02038..d753592796 100644
--- a/samples/widgets/fontpicker.cpp
+++ b/samples/widgets/fontpicker.cpp
@@ -119,7 +119,7 @@ wxEND_EVENT_TABLE()
 // implementation
 // ============================================================================
 
-#if defined(__WXGTK__)
+#if defined(__WXGTK20__)
     #define FAMILY_CTRLS NATIVE_CTRLS
 #else
     #define FAMILY_CTRLS GENERIC_CTRLS