diff --git a/include/cglm/vec3-ext.h b/include/cglm/vec3-ext.h
index 1fa3fd0..802f4cb 100644
--- a/include/cglm/vec3-ext.h
+++ b/include/cglm/vec3-ext.h
@@ -237,9 +237,9 @@ glm_vec3_abs(vec3 v, vec3 dest) {
 CGLM_INLINE
 void
 glm_vec3_fract(vec3 v, vec3 dest) {
-  dest[0] = fminf(v[0] - floorf(v[0]), 0x1.fffffep-1f);
-  dest[1] = fminf(v[1] - floorf(v[1]), 0x1.fffffep-1f);
-  dest[2] = fminf(v[2] - floorf(v[2]), 0x1.fffffep-1f);
+  dest[0] = fminf(v[0] - floorf(v[0]), 0.999999940395355224609375f);
+  dest[1] = fminf(v[1] - floorf(v[1]), 0.999999940395355224609375f);
+  dest[2] = fminf(v[2] - floorf(v[2]), 0.999999940395355224609375f);
 }
 
 /*!
diff --git a/include/cglm/vec4-ext.h b/include/cglm/vec4-ext.h
index f2af552..dfc6a4e 100644
--- a/include/cglm/vec4-ext.h
+++ b/include/cglm/vec4-ext.h
@@ -268,10 +268,10 @@ glm_vec4_abs(vec4 v, vec4 dest) {
 CGLM_INLINE
 void
 glm_vec4_fract(vec4 v, vec4 dest) {
-  dest[0] = fminf(v[0] - floorf(v[0]), 0x1.fffffep-1f);
-  dest[1] = fminf(v[1] - floorf(v[1]), 0x1.fffffep-1f);
-  dest[2] = fminf(v[2] - floorf(v[2]), 0x1.fffffep-1f);
-  dest[3] = fminf(v[3] - floorf(v[3]), 0x1.fffffep-1f);
+  dest[0] = fminf(v[0] - floorf(v[0]), 0.999999940395355224609375f);
+  dest[1] = fminf(v[1] - floorf(v[1]), 0.999999940395355224609375f);
+  dest[2] = fminf(v[2] - floorf(v[2]), 0.999999940395355224609375f);
+  dest[3] = fminf(v[3] - floorf(v[3]), 0.999999940395355224609375f);
 }
 
 /*!