diff --git a/Transmission.xcodeproj/project.pbxproj b/Transmission.xcodeproj/project.pbxproj
index 09c9fcb72..f1a5a919c 100644
--- a/Transmission.xcodeproj/project.pbxproj
+++ b/Transmission.xcodeproj/project.pbxproj
@@ -3013,11 +3013,6 @@
 				GCC_ENABLE_FIX_AND_CONTINUE = NO;
 				GCC_MODEL_TUNING = G5;
 				INSTALL_PATH = /usr/local/lib;
-				OTHER_CFLAGS = (
-					"$(inherited)",
-					"-DNDEBUG",
-				);
-				OTHER_CPLUSPLUSFLAGS = "$(OTHER_CFLAGS)";
 				PREBINDING = NO;
 				PRODUCT_NAME = miniupnp;
 				ZERO_LINK = NO;
@@ -3031,10 +3026,6 @@
 				GCC_ENABLE_FIX_AND_CONTINUE = YES;
 				GCC_MODEL_TUNING = G5;
 				INSTALL_PATH = /usr/local/lib;
-				OTHER_CFLAGS = (
-					"$(inherited)",
-					"-DNDEBUG",
-				);
 				OTHER_CPLUSPLUSFLAGS = "$(OTHER_CFLAGS)";
 				PREBINDING = NO;
 				PRODUCT_NAME = miniupnp;
@@ -3052,10 +3043,6 @@
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				INSTALL_PATH = /usr/local/lib;
-				OTHER_CFLAGS = (
-					"$(inherited)",
-					"-DNDEBUG",
-				);
 				OTHER_CPLUSPLUSFLAGS = "$(OTHER_CFLAGS)";
 				PREBINDING = NO;
 				PRODUCT_NAME = miniupnp;