diff --git a/tests/test/cg/tprintf.pp b/tests/test/cg/tprintf.pp
index 2084cbe4d6..90c1a81af6 100644
--- a/tests/test/cg/tprintf.pp
+++ b/tests/test/cg/tprintf.pp
@@ -4,7 +4,7 @@
 {$mode objfpc}
 
 uses
-  strings;
+  strings, ctypes;
 
 {$ifdef FPC_HAS_TYPE_EXTENDED}
 {$define TEST_EXTENDED}
@@ -54,7 +54,7 @@ const
   s2 : pchar = 'next';
   si : single = 32.12;
   d : double = 45.45;
-  e : extended = 74.74;
+  e : clongdouble = 74.74;
   p : pchar = nil;
   has_errors : boolean = false;
 
diff --git a/tests/test/cg/tprintf2.pp b/tests/test/cg/tprintf2.pp
index 255c768f17..a788ddb5c6 100644
--- a/tests/test/cg/tprintf2.pp
+++ b/tests/test/cg/tprintf2.pp
@@ -4,7 +4,7 @@
 {$mode objfpc}
 
 uses
-  strings;
+  strings, ctypes;
 
 {$ifdef FPC_HAS_TYPE_EXTENDED}
 {$define TEST_EXTENDED}
@@ -54,7 +54,7 @@ const
   s2 : pchar = 'next';
   si : single = 32.12;
   d : double = 45.45;
-  e : extended = 74.74;
+  e : clongdouble = 74.74;
   p : pchar = nil;
   has_errors : boolean = false;
 
diff --git a/tests/test/cg/tprintf3.pp b/tests/test/cg/tprintf3.pp
index d522465890..15ceed26fc 100644
--- a/tests/test/cg/tprintf3.pp
+++ b/tests/test/cg/tprintf3.pp
@@ -5,7 +5,7 @@
 {$mode macpas}
 
 uses
-  strings, uprintf3;
+  strings, uprintf3, ctypes;
 
 {$ifdef FPC_HAS_TYPE_EXTENDED}
 {$define TEST_EXTENDED}
@@ -39,7 +39,7 @@ const
   s2 : pchar = 'next';
   si : single = 32.12;
   d : double = 45.45;
-  e : extended = 74.74;
+  e : clongdouble = 74.74;
   p : pchar = nil;
   has_errors : boolean = false;