diff --git a/gfx/drivers_shader/glslang_util_cxx.cpp b/gfx/drivers_shader/glslang_util_cxx.cpp
index cb675294e3..4821b18ba9 100644
--- a/gfx/drivers_shader/glslang_util_cxx.cpp
+++ b/gfx/drivers_shader/glslang_util_cxx.cpp
@@ -68,9 +68,22 @@ static std::string build_stage_source(
          {
             char expected[128];
 
-            expected[0] = '\0';
+            expected[0]  = '#';
+            expected[1]  = 'p';
+            expected[2]  = 'r';
+            expected[3]  = 'a';
+            expected[4]  = 'g';
+            expected[5]  = 'm';
+            expected[6]  = 'a';
+            expected[7]  = ' ';
+            expected[8]  = 's';
+            expected[9]  = 't';
+            expected[10] = 'a';
+            expected[11] = 'g';
+            expected[12] = 'e';
+            expected[13] = ' ';
+            expected[14] = '\0';
 
-            strlcpy(expected, "#pragma stage ", sizeof(expected));
             strlcat(expected, stage,            sizeof(expected));
 
             active = strcmp(expected, line) == 0;