diff --git a/matrix/Matrix.hpp b/matrix/Matrix.hpp
index c4e9ec9573..9b849c2fcd 100644
--- a/matrix/Matrix.hpp
+++ b/matrix/Matrix.hpp
@@ -478,20 +478,19 @@ bool isEqual(const Matrix<Type, M, N> &x,
     return equal;
 }
 
-bool isEqual(float x,
-             float y, float eps);
 
-bool isEqual(float x,
-             float y, float eps=1e-4f) {
+template<typename Type>
+bool isEqualF(Type x,
+             Type y, Type eps=1e-4f) {
 
     bool equal = true;
 
-    if (fabs(x - y) > eps) {
+    if (fabsf(x - y) > eps) {
         equal = false;
     }
 
     if (!equal) {
-        printf("not equal\nx:\n%g\ny:\n%g\n", x, y);
+        printf("not equal\nx:\n%g\ny:\n%g\n", double(x), double(y));
     }
     return equal;
 }
diff --git a/test/attitude.cpp b/test/attitude.cpp
index c365aeda0f..60bb28f69e 100644
--- a/test/attitude.cpp
+++ b/test/attitude.cpp
@@ -277,7 +277,7 @@ int main()
     AxisAnglef aa_axis_angle_init(Vector3f(1.0f, 2.0f, 3.0f), 3.0f);
     TEST(isEqual(aa_axis_angle_init, Vector3f(0.80178373f, 1.60356745f, 2.40535118f)));
     TEST(isEqual(aa_axis_angle_init.axis(), Vector3f(0.26726124f,  0.53452248f,  0.80178373f)));
-    TEST(isEqual(aa_axis_angle_init.angle(), 3.0f));
+    TEST(isEqualF(aa_axis_angle_init.angle(), 3.0f));
     TEST(isEqual(Quatf((AxisAnglef(Vector3f(0.0f, 0.0f, 1.0f), 0.0f))),
                  Quatf(1.0f, 0.0f, 0.0f, 0.0f)));
 
diff --git a/test/helper.cpp b/test/helper.cpp
index ccef76d1ab..e4787fc3a2 100644
--- a/test/helper.cpp
+++ b/test/helper.cpp
@@ -19,8 +19,8 @@ int main()
     TEST(!isEqual(a, b));
     TEST(isEqual(a, a));
 
-    TEST(isEqual(1.0f, 1.0f));
-    TEST(!isEqual(1.0f, 2.0f));
+    TEST(isEqualF(1.0f, 1.0f));
+    TEST(!isEqualF(1.0f, 2.0f));
     return 0;
 }