diff --git a/mkspecs/common/qcc-base-qnx.conf b/mkspecs/common/qcc-base-qnx.conf
index b1bae7122d..88b82ccd71 100644
--- a/mkspecs/common/qcc-base-qnx.conf
+++ b/mkspecs/common/qcc-base-qnx.conf
@@ -37,9 +37,8 @@ QMAKE_LIBS_EGL          = -lEGL
 # against the NDK's target directory which is referenced by the QNX_TARGET environment
 # variable, and which is guaranteed by the NDK to be set.
 QNX_DIR = $$(QNX_TARGET)
-
 isEmpty(QNX_DIR) {
-    error(QNX_TARGET environment variable not set)
+    error("QNX_TARGET environment variable not set")
 }
 
 QMAKE_INCDIR            = $${QNX_DIR}/usr/include $${QNX_DIR}/usr/include/freetype2