diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 65f3697d354..10fd2d5ab93 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -793,6 +793,9 @@ assign_uniform_locations(struct gl_shader_program *prog)
 	 if ((var == NULL) || (var->mode != ir_var_uniform))
 	    continue;
 
+	 if (var->type->is_sampler())
+	    continue;
+
 	 const unsigned vec4_slots = (var->component_slots() + 3) / 4;
 	 assert(vec4_slots != 0);