diff --git a/Makefile b/Makefile
index 49ab641623149..a2aad1e89ec4d 100644
--- a/Makefile
+++ b/Makefile
@@ -220,10 +220,10 @@ ifdef LLAMA_VULKAN
 	OBJS    += ggml-vulkan.o
 ggml-vulkan.o: ggml-vulkan.cpp ggml-vulkan.h
 	$(CXX) $(CXXFLAGS) -c $< -o $@
-	glslc -fshader-stage=compute --target-env=vulkan1.2 -O vk_shaders/matmul_f32.glsl -o vk_shaders/matmul_f32.spv
-	glslc -fshader-stage=compute --target-env=vulkan1.2 -O vk_shaders/matmul_f16.glsl -o vk_shaders/matmul_f16.spv
-	glslc -fshader-stage=compute --target-env=vulkan1.2 -O vk_shaders/f16_to_f32.glsl -o vk_shaders/f16_to_f32.spv
-	glslc -fshader-stage=compute --target-env=vulkan1.2 -O vk_shaders/dequant_q4_0.glsl -o vk_shaders/dequant_q4_0.spv
+	glslc -fshader-stage=compute --target-env=vulkan1.2 vk_shaders/matmul_f32.glsl -o vk_shaders/matmul_f32.spv
+	glslc -fshader-stage=compute --target-env=vulkan1.2 vk_shaders/matmul_f16.glsl -o vk_shaders/matmul_f16.spv
+	glslc -fshader-stage=compute --target-env=vulkan1.2 vk_shaders/f16_to_f32.glsl -o vk_shaders/f16_to_f32.spv
+	glslc -fshader-stage=compute --target-env=vulkan1.2 vk_shaders/dequant_q4_0.glsl -o vk_shaders/dequant_q4_0.spv
 endif
 
 ifneq ($(filter aarch64%,$(UNAME_M)),)