diff --git a/assert/assertion_compare.go b/assert/assertion_compare.go
index aff1c4b80..718d58202 100644
--- a/assert/assertion_compare.go
+++ b/assert/assertion_compare.go
@@ -313,7 +313,7 @@ func Greater(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface
 	if h, ok := t.(tHelper); ok {
 		h.Helper()
 	}
-	return compareTwoValues(t, e1, e2, []CompareType{compareGreater}, "\"%v\" is not greater than \"%v\"", msgAndArgs)
+	return compareTwoValues(t, e1, e2, []CompareType{compareGreater}, "\"%v\" is not greater than \"%v\"", msgAndArgs...)
 }
 
 // GreaterOrEqual asserts that the first element is greater than or equal to the second
@@ -326,7 +326,7 @@ func GreaterOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...in
 	if h, ok := t.(tHelper); ok {
 		h.Helper()
 	}
-	return compareTwoValues(t, e1, e2, []CompareType{compareGreater, compareEqual}, "\"%v\" is not greater than or equal to \"%v\"", msgAndArgs)
+	return compareTwoValues(t, e1, e2, []CompareType{compareGreater, compareEqual}, "\"%v\" is not greater than or equal to \"%v\"", msgAndArgs...)
 }
 
 // Less asserts that the first element is less than the second
@@ -338,7 +338,7 @@ func Less(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{})
 	if h, ok := t.(tHelper); ok {
 		h.Helper()
 	}
-	return compareTwoValues(t, e1, e2, []CompareType{compareLess}, "\"%v\" is not less than \"%v\"", msgAndArgs)
+	return compareTwoValues(t, e1, e2, []CompareType{compareLess}, "\"%v\" is not less than \"%v\"", msgAndArgs...)
 }
 
 // LessOrEqual asserts that the first element is less than or equal to the second
@@ -351,7 +351,7 @@ func LessOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...inter
 	if h, ok := t.(tHelper); ok {
 		h.Helper()
 	}
-	return compareTwoValues(t, e1, e2, []CompareType{compareLess, compareEqual}, "\"%v\" is not less than or equal to \"%v\"", msgAndArgs)
+	return compareTwoValues(t, e1, e2, []CompareType{compareLess, compareEqual}, "\"%v\" is not less than or equal to \"%v\"", msgAndArgs...)
 }
 
 // Positive asserts that the specified element is positive
@@ -363,7 +363,7 @@ func Positive(t TestingT, e interface{}, msgAndArgs ...interface{}) bool {
 		h.Helper()
 	}
 	zero := reflect.Zero(reflect.TypeOf(e))
-	return compareTwoValues(t, e, zero.Interface(), []CompareType{compareGreater}, "\"%v\" is not positive", msgAndArgs)
+	return compareTwoValues(t, e, zero.Interface(), []CompareType{compareGreater}, "\"%v\" is not positive", msgAndArgs...)
 }
 
 // Negative asserts that the specified element is negative
@@ -375,7 +375,7 @@ func Negative(t TestingT, e interface{}, msgAndArgs ...interface{}) bool {
 		h.Helper()
 	}
 	zero := reflect.Zero(reflect.TypeOf(e))
-	return compareTwoValues(t, e, zero.Interface(), []CompareType{compareLess}, "\"%v\" is not negative", msgAndArgs)
+	return compareTwoValues(t, e, zero.Interface(), []CompareType{compareLess}, "\"%v\" is not negative", msgAndArgs...)
 }
 
 func compareTwoValues(t TestingT, e1 interface{}, e2 interface{}, allowedComparesResults []CompareType, failMessage string, msgAndArgs ...interface{}) bool {
diff --git a/assert/assertion_order.go b/assert/assertion_order.go
index 1c3b47182..759448783 100644
--- a/assert/assertion_order.go
+++ b/assert/assertion_order.go
@@ -50,7 +50,7 @@ func isOrdered(t TestingT, object interface{}, allowedComparesResults []CompareT
 //    assert.IsIncreasing(t, []float{1, 2})
 //    assert.IsIncreasing(t, []string{"a", "b"})
 func IsIncreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	return isOrdered(t, object, []CompareType{compareLess}, "\"%v\" is not less than \"%v\"", msgAndArgs)
+	return isOrdered(t, object, []CompareType{compareLess}, "\"%v\" is not less than \"%v\"", msgAndArgs...)
 }
 
 // IsNonIncreasing asserts that the collection is not increasing
@@ -59,7 +59,7 @@ func IsIncreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) boo
 //    assert.IsNonIncreasing(t, []float{2, 1})
 //    assert.IsNonIncreasing(t, []string{"b", "a"})
 func IsNonIncreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	return isOrdered(t, object, []CompareType{compareEqual, compareGreater}, "\"%v\" is not greater than or equal to \"%v\"", msgAndArgs)
+	return isOrdered(t, object, []CompareType{compareEqual, compareGreater}, "\"%v\" is not greater than or equal to \"%v\"", msgAndArgs...)
 }
 
 // IsDecreasing asserts that the collection is decreasing
@@ -68,7 +68,7 @@ func IsNonIncreasing(t TestingT, object interface{}, msgAndArgs ...interface{})
 //    assert.IsDecreasing(t, []float{2, 1})
 //    assert.IsDecreasing(t, []string{"b", "a"})
 func IsDecreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	return isOrdered(t, object, []CompareType{compareGreater}, "\"%v\" is not greater than \"%v\"", msgAndArgs)
+	return isOrdered(t, object, []CompareType{compareGreater}, "\"%v\" is not greater than \"%v\"", msgAndArgs...)
 }
 
 // IsNonDecreasing asserts that the collection is not decreasing
@@ -77,5 +77,5 @@ func IsDecreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) boo
 //    assert.IsNonDecreasing(t, []float{1, 2})
 //    assert.IsNonDecreasing(t, []string{"a", "b"})
 func IsNonDecreasing(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	return isOrdered(t, object, []CompareType{compareLess, compareEqual}, "\"%v\" is not less than or equal to \"%v\"", msgAndArgs)
+	return isOrdered(t, object, []CompareType{compareLess, compareEqual}, "\"%v\" is not less than or equal to \"%v\"", msgAndArgs...)
 }