diff --git a/backend.native/konan.properties b/backend.native/konan.properties
index 02c6bd7bd03..5e3e8df45a2 100644
--- a/backend.native/konan.properties
+++ b/backend.native/konan.properties
@@ -26,9 +26,9 @@ downloadingAttemptIntervalMs = 3000
 homeDependencyCache = .konan/cache
 
 llvmDebugOptFlags = -O0
+llvmVersion = 5.0.0
 
 # Mac OS X.
-llvmVersion.osx = 5.0.0
 llvmHome.osx = clang-llvm-5.0.0-darwin-macos
 targetToolchain.osx = clang-llvm-5.0.0-darwin-macos
 
@@ -98,7 +98,6 @@ osVersionMinFlagClang.ios_sim = -mios-simulator-version-min
 osVersionMin.ios_sim = 8.0
 
 # Linux x86-64.
-llvmVersion.linux = 5.0.0
 llvmHome.linux = clang-llvm-5.0.0-linux-x86-64
 gccToolchain.linux = target-gcc-toolchain-3-linux-x86-64
 targetToolchain.linux = target-gcc-toolchain-3-linux-x86-64/x86_64-unknown-linux-gnu
@@ -253,7 +252,6 @@ linkerKonanFlags.android_arm64 = -lm -latomic -lstdc++ -landroid
 linkerDebugFlags.android_arm64 = -Wl,-S
 
 # Windows x86-64, based on mingw-w64.
-llvmVersion.mingw = 5.0.0
 llvmHome.mingw = msys2-mingw-w64-x86_64-gcc-7.2.0-clang-llvm-5.0.0-windows-x86-64
 targetToolchain.mingw = msys2-mingw-w64-x86_64-gcc-7.2.0-clang-llvm-5.0.0-windows-x86-64
 
diff --git a/gradle.properties b/gradle.properties
index 14f9aa6fd81..12b885961c3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -16,7 +16,6 @@
 
 # A version of the Kotlin "toolchain" (compiler, runtime, stdlib etc) used by the build script.
 buildKotlinVersion=1.2.0
-llvmVersion = 3.9.0
 remoteRoot=konan_tests
 #kotlinCompilerModule=org.jetbrains.kotlin:kotlin-compiler:1.1-SNAPSHOT
 # Download artifacts of https://teamcity.jetbrains.com/viewType.html?buildTypeId=Kotlin_120_Compiler