diff --git a/src/gfx_apis/gl/gl/program.rs b/src/gfx_apis/gl/gl/program.rs
index 3ab59e3d..3514514f 100644
--- a/src/gfx_apis/gl/gl/program.rs
+++ b/src/gfx_apis/gl/gl/program.rs
@@ -7,8 +7,7 @@ use {
         },
         RenderError,
     },
-    std::rc::Rc,
-    uapi::Ustr,
+    std::{ffi::CStr, rc::Rc},
 };
 
 pub struct GlProgram {
@@ -51,11 +50,11 @@ impl GlProgram {
         Ok(res)
     }
 
-    pub unsafe fn get_uniform_location(&self, name: &Ustr) -> GLint {
+    pub unsafe fn get_uniform_location(&self, name: &CStr) -> GLint {
         (self.ctx.dpy.gles.glGetUniformLocation)(self.prog, name.as_ptr() as _)
     }
 
-    pub unsafe fn get_attrib_location(&self, name: &Ustr) -> GLint {
+    pub unsafe fn get_attrib_location(&self, name: &CStr) -> GLint {
         (self.ctx.dpy.gles.glGetAttribLocation)(self.prog, name.as_ptr() as _)
     }
 }
diff --git a/src/gfx_apis/gl/renderer/context.rs b/src/gfx_apis/gl/renderer/context.rs
index 9fda33dc..e5c4b969 100644
--- a/src/gfx_apis/gl/renderer/context.rs
+++ b/src/gfx_apis/gl/renderer/context.rs
@@ -30,7 +30,6 @@ use {
         fmt::{Debug, Formatter},
         rc::Rc,
     },
-    uapi::ustr,
 };
 
 pub(crate) struct TexProg {
@@ -44,13 +43,13 @@ pub(crate) struct TexProg {
 impl TexProg {
     unsafe fn from(prog: GlProgram, alpha_multiplier: bool) -> Self {
         let alpha = match alpha_multiplier {
-            true => prog.get_uniform_location(ustr!("alpha")),
+            true => prog.get_uniform_location(c"alpha"),
             false => 0,
         };
         Self {
-            pos: prog.get_attrib_location(ustr!("pos")),
-            texcoord: prog.get_attrib_location(ustr!("texcoord")),
-            tex: prog.get_uniform_location(ustr!("tex")),
+            pos: prog.get_attrib_location(c"pos"),
+            texcoord: prog.get_attrib_location(c"texcoord"),
+            tex: prog.get_uniform_location(c"tex"),
             alpha,
             prog,
         }
@@ -164,8 +163,8 @@ impl GlRenderContext {
             tex_internal,
             tex_external,
 
-            fill_prog_pos: fill_prog.get_attrib_location(ustr!("pos")),
-            fill_prog_color: fill_prog.get_uniform_location(ustr!("color")),
+            fill_prog_pos: fill_prog.get_attrib_location(c"pos"),
+            fill_prog_color: fill_prog.get_uniform_location(c"color"),
             fill_prog,
 
             gfx_ops: Default::default(),
diff --git a/src/gfx_apis/vulkan/instance.rs b/src/gfx_apis/vulkan/instance.rs
index f68a99fa..66dde3b9 100644
--- a/src/gfx_apis/vulkan/instance.rs
+++ b/src/gfx_apis/vulkan/instance.rs
@@ -63,7 +63,7 @@ impl VulkanInstance {
             .collect();
         let app_info = ApplicationInfo::default()
             .api_version(API_VERSION)
-            .application_name(ustr!("jay").as_c_str().unwrap())
+            .application_name(c"jay")
             .application_version(1);
         let mut severity = DebugUtilsMessageSeverityFlagsEXT::empty()
             | DebugUtilsMessageSeverityFlagsEXT::ERROR
diff --git a/src/gfx_apis/vulkan/pipeline.rs b/src/gfx_apis/vulkan/pipeline.rs
index e5701cae..98ac2926 100644
--- a/src/gfx_apis/vulkan/pipeline.rs
+++ b/src/gfx_apis/vulkan/pipeline.rs
@@ -18,7 +18,6 @@ use {
         PrimitiveTopology, PushConstantRange, SampleCountFlags, ShaderStageFlags,
     },
     std::{mem, rc::Rc, slice},
-    uapi::ustr,
 };
 
 pub(super) struct VulkanPipeline {
@@ -87,16 +86,15 @@ impl VulkanDevice {
         let destroy_layout =
             OnDrop(|| unsafe { self.device.destroy_pipeline_layout(pipeline_layout, None) });
         let pipeline = {
-            let main = ustr!("main").as_c_str().unwrap();
             let stages = [
                 PipelineShaderStageCreateInfo::default()
                     .stage(ShaderStageFlags::VERTEX)
                     .module(info.vert.module)
-                    .name(main),
+                    .name(c"main"),
                 PipelineShaderStageCreateInfo::default()
                     .stage(ShaderStageFlags::FRAGMENT)
                     .module(info.frag.module)
-                    .name(main),
+                    .name(c"main"),
             ];
             let input_assembly_state = PipelineInputAssemblyStateCreateInfo::default()
                 .topology(PrimitiveTopology::TRIANGLE_STRIP);
diff --git a/src/udev.rs b/src/udev.rs
index 0ee165ab..0cef0e28 100644
--- a/src/udev.rs
+++ b/src/udev.rs
@@ -4,7 +4,7 @@ use {
     crate::utils::oserror::OsError,
     std::{ffi::CStr, marker::PhantomData, ptr, rc::Rc},
     thiserror::Error,
-    uapi::{c, ustr, Errno, IntoUstr, Ustr},
+    uapi::{c, Errno, IntoUstr},
 };
 
 #[repr(transparent)]
@@ -375,7 +375,7 @@ impl UdevDevice {
         unsafe { udev_device_get_is_initialized(self.device) != 0 }
     }
 
-    fn get_property(&self, prop: &Ustr) -> Option<&CStr> {
+    fn get_property(&self, prop: &CStr) -> Option<&CStr> {
         let prop = unsafe { udev_device_get_property_value(self.device, prop.as_ptr()) };
         if prop.is_null() {
             None
@@ -385,15 +385,15 @@ impl UdevDevice {
     }
 
     pub fn vendor(&self) -> Option<&CStr> {
-        self.get_property(ustr!("ID_VENDOR_FROM_DATABASE"))
+        self.get_property(c"ID_VENDOR_FROM_DATABASE")
     }
 
     pub fn model(&self) -> Option<&CStr> {
-        self.get_property(ustr!("ID_MODEL_FROM_DATABASE"))
+        self.get_property(c"ID_MODEL_FROM_DATABASE")
     }
 
     pub fn pci_id(&self) -> Option<&CStr> {
-        self.get_property(ustr!("PCI_ID"))
+        self.get_property(c"PCI_ID")
     }
 }