diff --git a/src/plugins/sqldrivers/psql/CMakeLists.txt b/src/plugins/sqldrivers/psql/CMakeLists.txt
index 2de82be2f81..ab3d6c03aa7 100644
--- a/src/plugins/sqldrivers/psql/CMakeLists.txt
+++ b/src/plugins/sqldrivers/psql/CMakeLists.txt
@@ -24,3 +24,14 @@ qt_internal_add_plugin(QPSQLDriverPlugin
 
 #### Keys ignored in scope 1:.:.:psql.pro:<TRUE>:
 # OTHER_FILES = "psql.json"
+
+# PostgreSQL delivers header files that are not a part of PostgreSQL itself. When precompiled
+# headers are processed, MinGW uses 'pthread.h' from the PostgreSQL installation directory.
+# As result, we disable precompile headers for the plugin.
+# See also QTBUG-90850.
+if(MINGW)
+    set_target_properties(QPSQLDriverPlugin
+        PROPERTIES
+            DISABLE_PRECOMPILE_HEADERS ON
+    )
+endif()