diff --git a/.appveyor.yml b/.appveyor.yml
index e93b8dac..baf29353 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -146,6 +146,7 @@ environment:
     - FLAVOR: MinGW-w64 (32 bit, C++11)
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       ADDPATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;
+      B2_CXXFLAGS: -g0 # Reduce compiler's memory consumption
       B2_CXXSTD: 11
       B2_TOOLSET: gcc
       B2_ADDRESS_MODEL: 32
@@ -153,6 +154,7 @@ environment:
     - FLAVOR: MinGW-w64 (32 bit, C++14)
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       ADDPATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;
+      B2_CXXFLAGS: -g0 # Reduce compiler's memory consumption
       B2_CXXSTD: 14
       B2_TOOLSET: gcc
       B2_ADDRESS_MODEL: 32
@@ -160,6 +162,7 @@ environment:
     - FLAVOR: MinGW-w64 (32 bit, C++17)
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       ADDPATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;
+      B2_CXXFLAGS: -g0 # Reduce compiler's memory consumption
       B2_CXXSTD: 17
       B2_TOOLSET: gcc
       B2_ADDRESS_MODEL: 32
@@ -167,6 +170,7 @@ environment:
     - FLAVOR: MinGW-w64 (32 bit, C++2a)
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       ADDPATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;
+      B2_CXXFLAGS: -g0 # Reduce compiler's memory consumption
       B2_CXXSTD: 2a
       B2_TOOLSET: gcc
       B2_ADDRESS_MODEL: 32