diff --git a/src/tools/3rdparty/iossim/iossim.pro b/src/tools/3rdparty/iossim/iossim.pro
index 25f185cb0f1..47534f00d74 100644
--- a/src/tools/3rdparty/iossim/iossim.pro
+++ b/src/tools/3rdparty/iossim/iossim.pro
@@ -42,7 +42,7 @@ include(../../../rpath.pri)
 OBJECTIVE_SOURCES += \
   main.mm \
   nsprintf.mm \
-  nsstringexpandPath.mm \
+  nsstringexpandpath.mm \
   iphonesimulator.mm
 
 HEADERS += \
diff --git a/src/tools/3rdparty/iossim_1_8_2/iossim_1_8_2.pro b/src/tools/3rdparty/iossim_1_8_2/iossim_1_8_2.pro
index 9e303074066..fc18227ca26 100644
--- a/src/tools/3rdparty/iossim_1_8_2/iossim_1_8_2.pro
+++ b/src/tools/3rdparty/iossim_1_8_2/iossim_1_8_2.pro
@@ -41,7 +41,7 @@ include(../../../rpath.pri)
 OBJECTIVE_SOURCES += \
   main.mm \
   nsprintf.mm \
-  nsstringexpandPath.mm \
+  nsstringexpandpath.mm \
   iphonesimulator.mm
 
 HEADERS += \