diff --git a/CuTest.c b/CuTest.c
index 36e3d53..777e71b 100644
--- a/CuTest.c
+++ b/CuTest.c
@@ -235,6 +235,15 @@ void CuAssertULongEquals_LineMsg(CuTest* tc, const char* file, int line, const c
 	CuFail_Line(tc, file, line, message, buf);
 }
 
+void CuAssertSizetEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message, 
+	size_t expected, size_t actual)
+{
+	char buf[STRING_MAX];
+	if (expected == actual) return;
+	sprintf(buf, "expected <%zu> but was <%zu>", expected, actual);
+	CuFail_Line(tc, file, line, message, buf);
+}
+
 void CuAssertDblEquals_LineMsg(CuTest* tc, const char* file, int line, const char* message, 
 	double expected, double actual, double delta)
 {
diff --git a/CuTest.h b/CuTest.h
index 477b53a..5c31b27 100644
--- a/CuTest.h
+++ b/CuTest.h
@@ -71,6 +71,9 @@ void CuAssertLongEquals_LineMsg(CuTest* tc,
 void CuAssertULongEquals_LineMsg(CuTest* tc, 
 	const char* file, int line, const char* message, 
 	unsigned long expected, unsigned long actual);
+void CuAssertSizetEquals_LineMsg(CuTest* tc, 
+	const char* file, int line, const char* message, 
+	size_t expected, size_t actual);
 void CuAssertDblEquals_LineMsg(CuTest* tc, 
 	const char* file, int line, const char* message, 
 	double expected, double actual, double delta);
@@ -92,6 +95,8 @@ void CuAssertPtrEquals_LineMsg(CuTest* tc,
 #define CuAssertLongEquals_Msg(tc,ms,ex,ac)   CuAssertLongEquals_LineMsg((tc),__FILE__,__LINE__,(ms),(ex),(ac))
 #define CuAssertULongEquals(tc,ex,ac)         CuAssertULongEquals_LineMsg((tc),__FILE__,__LINE__,NULL,(ex),(ac))
 #define CuAssertULongEquals_Msg(tc,ms,ex,ac)  CuAssertULongEquals_LineMsg((tc),__FILE__,__LINE__,(ms),(ex),(ac))
+#define CuAssertSizetEquals(tc,ex,ac)         CuAssertSizetEquals_LineMsg((tc),__FILE__,__LINE__,NULL,(ex),(ac))
+#define CuAssertSizetEquals_Msg(tc,ms,ex,ac)  CuAssertSizetEquals_LineMsg((tc),__FILE__,__LINE__,(ms),(ex),(ac))
 #define CuAssertDblEquals(tc,ex,ac,dl)        CuAssertDblEquals_LineMsg((tc),__FILE__,__LINE__,NULL,(ex),(ac),(dl))
 #define CuAssertDblEquals_Msg(tc,ms,ex,ac,dl) CuAssertDblEquals_LineMsg((tc),__FILE__,__LINE__,(ms),(ex),(ac),(dl))
 #define CuAssertPtrEquals(tc,ex,ac)           CuAssertPtrEquals_LineMsg((tc),__FILE__,__LINE__,NULL,(ex),(ac))