diff --git a/include/cglm-euler.h b/include/cglm-euler.h
index b0219ba..117516f 100644
--- a/include/cglm-euler.h
+++ b/include/cglm-euler.h
@@ -66,7 +66,7 @@ glm_euler_angles(mat4 m, vec3 dest) {
 
       glm_vec_dup(a[path], dest);
     } else {
-      dest[0] = atan2(m[1][0], m[2][0]);
+      dest[0] = atan2f(m[1][0], m[2][0]);
       dest[1] = M_PI_2;
       dest[2] = 0.0f;
     }
diff --git a/include/cglm-quat.h b/include/cglm-quat.h
index 9077c8f..99834ed 100644
--- a/include/cglm-quat.h
+++ b/include/cglm-quat.h
@@ -159,9 +159,9 @@ glm_quat_slerp(versor q,
   }
 
   /* SLERP */
-  angle = acos(cosTheta);
-  a = sin(c * angle);
-  b = sin(t * angle);
+  angle = acosf(cosTheta);
+  a = sinf(c * angle);
+  b = sinf(t * angle);
 
   dest[0] = (q[0] * a + r[0] * b) / sinTheta;
   dest[1] = (q[1] * a + r[1] * b) / sinTheta;