diff --git a/linmath.h b/linmath.h
index be37caf..2196493 100644
--- a/linmath.h
+++ b/linmath.h
@@ -579,13 +579,13 @@ LINMATH_H_FUNC void mat4x4_arcball(mat4x4 R, mat4x4 const M, vec2 const _a, vec2
 	float z_b = 0.;
 
 	if(vec2_len(a) < 1.) {
-		z_a = sqrtf(1. - vec2_mul_inner(a, a));
+		z_a = sqrtf(1.f - vec2_mul_inner(a, a));
 	} else {
 		vec2_norm(a, a);
 	}
 
 	if(vec2_len(b) < 1.) {
-		z_b = sqrtf(1. - vec2_mul_inner(b, b));
+		z_b = sqrtf(1.f - vec2_mul_inner(b, b));
 	} else {
 		vec2_norm(b, b);
 	}