diff --git a/src/qt/qt_glsl_parser.cpp b/src/qt/qt_glsl_parser.cpp
index 599a95452..9efeb430b 100644
--- a/src/qt/qt_glsl_parser.cpp
+++ b/src/qt/qt_glsl_parser.cpp
@@ -118,7 +118,7 @@ static char *load_file(const char *fn) {
 
         char *data = (char*)malloc(fsize + 1);
 
-        (void *) !fread(data, fsize, 1, fp);
+        (void) fread(data, fsize, 1, fp);
         fclose(fp);
 
         data[fsize] = 0;