diff --git a/changelog.md b/changelog.md
index 7ae6f535..c15ccbcc 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,9 @@
 ## Changelog
 
+#### v1.5.1
+
+* `[knf]` Fixed bug in HasProp method which return true for unset properties
+
 #### v1.5.0
 
 * `[tmp]` Improved error handling
diff --git a/knf/knf.go b/knf/knf.go
index 180dabc7..496eb036 100644
--- a/knf/knf.go
+++ b/knf/knf.go
@@ -275,9 +275,9 @@ func (c *Config) GetS(name string, defvals ...string) string {
 		return ""
 	}
 
-	val, ok := c.data[name]
+	val := c.data[name]
 
-	if !ok || val == "" {
+	if val == "" {
 		if len(defvals) == 0 {
 			return ""
 		}
@@ -294,9 +294,9 @@ func (c *Config) GetI(name string, defvals ...int) int {
 		return 0
 	}
 
-	val, ok := c.data[name]
+	val := c.data[name]
 
-	if !ok || val == "" {
+	if val == "" {
 		if len(defvals) == 0 {
 			return 0
 		}
@@ -330,9 +330,9 @@ func (c *Config) GetF(name string, defvals ...float64) float64 {
 		return 0.0
 	}
 
-	val, ok := c.data[name]
+	val := c.data[name]
 
-	if !ok || val == "" {
+	if val == "" {
 		if len(defvals) == 0 {
 			return 0.0
 		}
@@ -355,9 +355,9 @@ func (c *Config) GetB(name string, defvals ...bool) bool {
 		return false
 	}
 
-	val, ok := c.data[name]
+	val := c.data[name]
 
-	if !ok || val == "" {
+	if val == "" {
 		if len(defvals) == 0 {
 			return false
 		}
@@ -379,9 +379,9 @@ func (c *Config) GetM(name string, defvals ...os.FileMode) os.FileMode {
 		return 0
 	}
 
-	val, ok := c.data[name]
+	val := c.data[name]
 
-	if !ok || val == "" {
+	if val == "" {
 		if len(defvals) == 0 {
 			return 0
 		}
@@ -413,9 +413,7 @@ func (c *Config) HasProp(name string) bool {
 		return false
 	}
 
-	_, ok := c.data[name]
-
-	return ok
+	return c.data[name] != ""
 }
 
 // Sections return slice with section names
diff --git a/knf/knf_test.go b/knf/knf_test.go
index aa5bb91c..e514b6fd 100644
--- a/knf/knf_test.go
+++ b/knf/knf_test.go
@@ -252,8 +252,8 @@ func (s *KNFSuite) TestCheckers(c *check.C) {
 	c.Assert(HasSection("strings"), check.Equals, false)
 
 	c.Assert(HasProp("string:test1"), check.Equals, true)
-	c.Assert(HasProp("string:test9"), check.Equals, false)
-	c.Assert(HasProp("strings:test9"), check.Equals, false)
+	c.Assert(HasProp("string:test6"), check.Equals, false)
+	c.Assert(HasProp("strings:test6"), check.Equals, false)
 }
 
 func (s *KNFSuite) TestFormating(c *check.C) {